Help! My New MacBook is Running Slow

Few things are more frustrating than a brand new Mac that doesn‘t deliver the lightning-fast performance you expected. Whether you‘re booting up, launching apps, or just trying to browse the web, slowdowns on a new machine can be maddening – especially given the premium price of Apple products.

As a Mac certified technician with over 10 years of experience optimizing Apple systems, I‘m very familiar with the "new Mac slowdown" phenomenon. The good news is that with a little troubleshooting and tweaking, we can usually restore your Mac to its intended zippy performance.

In this article, we‘ll dive into the top 5 reasons your new Mac might be underperforming, and walk through detailed steps to address each one. Whether you‘re a new Mac user or a seasoned pro, you‘ll come away with actionable tips to get your machine running like new. Let‘s get started!

Step 1: Diagnose and Free Up Disk Space

One of the most frequent causes of poor performance on Macs new and old is an overstuffed hard drive. macOS needs a good chunk of free space to function optimally – without it, everything from app launches to file saves can grind to a halt.

Industry experts and Apple itself recommend keeping at least 10-20% of your total disk space free for maximum performance. For example, if your MacBook has a 256GB SSD, you should aim to keep 25-50GB free at all times.

To check your disk usage, click the Apple menu > About This Mac > Storage. The color-coded bar graph shows your drive‘s usage at a glance. If you have less than 10-20% free space, it‘s time to clean house.

So what files should you delete to reclaim precious gigabytes? Start by targeting the biggest space hogs:

• Movies, music, and other media files, especially in iTunes/Apple Music
• Large attachments in Apple Mail (File > Export Mailbox to save them elsewhere first)
• Unnecessary iOS backups in iTunes/Finder
• Old iPhone photos in Photos (export them to an external drive first)
• Installed versions of Xcode, if you‘re not actively developing apps
• Cached and temporary files (use a cleaner app like CCleaner or CleanMyMac X)

If you have large files you don‘t want to delete, consider moving them to an external drive or uploading to a cloud storage service like iCloud, Google Drive, or Dropbox. You can also enable iCloud Photos to offload your full-resolution media to Apple‘s servers.

Step 2: Identify and Kill Resource-Hungry Apps

Another common reason for subpar performance is apps that consume more than their fair share of your Mac‘s resources. Just one runaway app can drag your whole system down with it.

To see which apps are the biggest resource hogs, open Activity Monitor (Applications > Utilities). Click the %CPU column to sort by processor usage, and the Memory column to sort by RAM usage.

In general, you want to watch out for a few things here:

• Single apps using >70% CPU for more than a few seconds
• Apps with large memory footprints (1GB+) that you‘re not actively using
• Groups of related apps (e.g. Chrome Helper processes) using lots of resources

If you spot any hogs, you can select them and click the X button to force quit. Don‘t go overboard though – only quit processes you‘re sure you don‘t need. Using a tool like iStat Menus can help you keep tabs on resource usage over time.

To reduce resource usage from common culprits like web browsers, be mindful of how many tabs you have open at once. A study by MakeUseOf found that with 10 tabs open, Chrome used over 2GB of RAM on average. Closing tabs you‘re not actively using can give your Mac some breathing room.

Step 3: Install All Software and Firmware Updates

Perhaps the most important thing you can do to keep your Mac running smoothly is to keep its software up-to-date. That means installing all macOS updates, security patches, and app updates as soon as they‘re released.

Why are updates so crucial for performance? In short, they often contain bug fixes and performance enhancements that can speed up your Mac. A great example is macOS 10.13.4, which reduced the idle power consumption of MacBooks by up to 30% compared to 10.13.3.

Software updates also patch security vulnerabilities, some of which can be exploited by malware to bog your system down (more on that in step 4). In fact, a 2020 report by Malwarebytes found that out-of-date software was one of the leading causes of Mac malware infections.

To check for macOS updates, click the Apple menu > System Preferences > Software Update. For app updates, open the App Store and click Updates in the sidebar. You can enable automatic updates on both pages so you never miss an important patch.

Don‘t neglect firmware updates for accessories like your Magic Mouse or AirPods either. Connect them to your Mac, then open System Information (hold Option and click the Apple menu > System Information). Select the accessory in the sidebar, then click Check for Updates.

Step 4: Scan for and Remove Malware

While Macs have a reputation for being virus-proof, the reality is more nuanced. macOS is inherently more secure than Windows thanks to built-in protections like Gatekeeper and XProtect, but Macs can and do get infected with malware.

The 2020 State of Malware Report by Malwarebytes found that Mac threats increased by over 400% from 2018 to 2019, outpacing Windows threats for the first time. The most prevalent Mac malware included adware like NewTab and Potentially Unwanted Programs (PUPs) like MacKeeper and MacBooster.

So how can you tell if malware is sapping your Mac‘s performance? Look for these red flags:

• Ads and pop-ups all over your desktop and browser
• New browser homepage and search engine that you can‘t change back
• Slow web browsing and frequent page redirects
• Fans constantly running and Mac getting very hot

If you suspect your Mac is infected, download a reputable anti-malware program like MalwareBytes or Avast Security and run a full system scan. Remove any threats the scan finds. CleanMyMac X also has a built-in malware scanner you can use.

To avoid future infections, only download apps from verified developers on the App Store or directly from official websites. Pirated software and "too good to be true" deals are common malware vectors. Keep your Mac updated and don‘t override Gatekeeper or XProtect unless absolutely necessary.

Step 5: Upgrade Your RAM (If Possible)

If you‘ve exhausted the above software solutions and your Mac is still feeling poky, you may be running up against a hardware limitation – specifically, insufficient RAM. Random Access Memory (RAM) is your Mac‘s working memory for active processes. Once it fills up, your Mac has to fall back to virtual memory on the much slower hard drive.

Unfortunately, the vast majority of modern Macs have soldered, non-upgradeable RAM. Only the 27" iMacs, 2018 Mac mini, and Mac Pro still offer user-accessible RAM slots. That means most MacBook and MacBook Pro owners are stuck with the amount of RAM they bought.

So how much memory do you really need? That depends on your workload, but Apple‘s base configurations are on the low end for a lot of users. Here are some general guidelines:

• 8GB: Fine for basic tasks like web browsing, email, and light photo editing
• 16GB: Minimum for heavy multitasking, serious Photoshop/Lightroom work, coding
• 32GB+: Only needed for 4K video editing, 3D modeling, and other niche pro uses

If you‘re constantly seeing "Your system has run out of application memory" errors, or if Activity Monitor frequently shows 2-3GB of swap usage, more RAM would probably help. But for most users, optimizing your workflow and using lightweight apps is a more realistic solution.

Safari tends to be more memory-efficient than Chrome, so switch browsers if Chrome is giving you trouble. And try to break the habit of keeping dozens of apps and tabs open at once – your Mac (and your own focus) will thank you.

Bonus Tip: Test Your Hardware and Reinstall macOS

If your Mac is still underperforming after following the above steps, you may have a hardware issue on your hands. Failing hard drives, bad RAM, and faulty logic boards can all cause persistent slowdowns, even on a new Mac.

To test your Mac‘s hardware, shut it down and hold D while booting to enter Apple Diagnostics. The utility will run a barrage of tests and let you know if it finds any issues. If it does, you‘ll need to contact Apple Support or visit an Apple Store or Authorized Service Provider for repairs.

A clean reinstall of macOS is also worth trying as a last resort. It will rule out any lingering software issues or weird misconfigurations that could be slowing your Mac down. Backup your data first, then boot into Recovery mode (Command+R at startup) and follow the prompts to reinstall.

After the clean install, use Migration Assistant to bring over your files and apps. With a blank slate and everything set back to factory defaults, your Mac should feel good as new.

The Bottom Line

Macs have a reputation for being high-performance machines, so it‘s especially frustrating when a brand new one doesn‘t live up to the hype. But in my experience, truly faulty hardware is quite rare. More often, a few simple tweaks and optimizations can restore your Mac to its former glory.

Freeing up disk space, weeding out resource hogs, installing updates, and scanning for malware will take care of the vast majority of slowdowns. And while you may not be able to upgrade your RAM, adding more would only be a band-aid for underlying issues anyway.

By following the steps and expert tips in this guide, you‘ll be well on your way to a Mac that feels as fast as the day you unboxed it. Stay vigilant, and you can keep it running like new for years to come. And if all else fails, there‘s always the nuclear option!