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My device had a problem and I had to install Os using a bootable use device, since that day system had been working extremely slow. running apps like photoshop / illustrator is a nightmare.
I have got a report from EtreCheck you can fine it here:
Currently its running on Mojave.
Any help would be lovely,
thanks!
iMac 21.5″, macOS 10.14
The reason your iMac is very slow is due to the 5400 rpm hard drive. Very slow. If you use an external SSD and run macOS from that, it will make your Mac 10 to 30 times faster for storage. For more info, instructions, and what external SSD to buy, please read: https://discussions.apple.com/docs/DOC-250003583. It appears a 500GB external SSD should be enough storage space for you.
Also, it is very important to back up your computer!
Cheers,
Jack
The reason your iMac is very slow is due to the 5400 rpm hard drive. Very slow. If you use an external SSD and run macOS from that, it will make your Mac 10 to 30 times faster for storage. For more info, instructions, and what external SSD to buy, please read: https://discussions.apple.com/docs/DOC-250003583. It appears a 500GB external SSD should be enough storage space for you.
Also, it is very important to back up your computer!
Cheers,
Jack
thank you very much jack!! it really has been very helpful
I Mac running extremely slow.
