You have to rely on some Mac cleaner software to remove all useless data.

You can pick your preferred Free Mac cleaner to speed up your Mac easily and quickly.

Deep Cleaner Free Mac Cleaner

With this free Mac cleaner, you can know where your disk space has gone and clean it safely.

Deep Cleaner Professional Data Recovery

Actually, it is a professional data recovery tool for Mac, which carries some disk cleaning functions.

It has the capability to analyze Mac storage space, locate unused, large, and duplicate files and so on.

In this way, it enables you to free up your Mac storage effortlessly.

Click Cleaner and you can clean up your Mac by cleaning system junk, iPhoto junk, email junk, similar photos, iTunes junk, trash bin, large old files and more.

Or there is too many startup items or icon clutter on desktop.

You can check to make sure if your Mac is compatible with macOS Catalina.

You can choose your preferred Mac cleaner according to your need.

Please share it in comment if you have any better Mac cleaner recommendation.

Mac Deep Cleaner