If you are using Sierra, the latest operating system from Apple and are not aware of its iCloud storage option, you could be missing out on something very important. You could be missing out on an easily exercisable option that will help you speed up your Mac and put an end to your my mac is running slow issues.
Since Apple is giving you free iCloud space in the cloud, what you must do is find large user files and folders that are located in your Mac OS partition and move it out to the cloud. If you didn’t know, it is never a good practice to keep your Mac OS Partition full.
The rationale behind this is that your Mac’s processor or central processing unit sometimes processes free disks space on your Mac’s OS partition as virtual memory. So, when your RAM is at full throttle, busy attending to memory hungry apps, and your processor begins to use hard disk space as RAM. Though it doesn’t quite get the same performance as RAM from your hard disk, it is still very crucial memory without which your Mac can considerably slow down.
So, do a check right away and move out as much stuff from your Mac OS partition as possible, onto your free iCloud storage. 50 GB of cloud storage space at Apple costs just $0.99 a month. If you want to bump it up to 200 GB, you have to pay just $2.99 a month. In other words, even if it costs you $2.99 a month, sign up for 200 GB and keep your Mac OS partition as light as possible. Try to also change the location of downloads folder so files you download in the future don’t fall into your Mac OS partition. This will ensure that the free space you free up by using iCloud stays free. Apps you install will however eat into your Mac OS partition free space. So, keep an eye on apps that take up too much space and avoid them if you can.