how to Clear my storage
my iMac is extremely slow always showing the rainbow circling. has anyone had a good experience with bringing the computer back to factory settings and then adding what they want back on? I store my pictures on an external drive, have time machine on an external drive. I use google docs. I've tried managing my storage and nothing works. thanks in advance!
iMac 21.5″ 4K, macOS 11.2