Very Slow Computer

[JayM]

Also you've permanently enabled the test repo. If your system auto-updated since doing that you've probably messed up your MX installation beyond repair and need to reinstall. That's probably what's causing the slowness. You may as well download the AHS iso and install that, unless you're using Timeshift and have a restore point from prior to your enabling test or have a complete system backup from before then, if you restore that you may be able to avoid having to reinstall MX. (See "How To Break Your System", linked in my signature.)

[Huckleberry Finn]

Just a tiny (and humble) addition to Tim's suggestion: If possible, on live session: GParted from Menu: Right-click on sdc1 "Check" .

( While you're at it: Menu: GSmartControl => Short Test. )

Actually: "while you're at it" again: do them for all (drives & partitions), nothing to lose and quick, a kind of "maintenance" :)

[smilliken]

Ran the SmartControl=> short test and received a PASS.

I've noticed this slow down of the computer happens over some time so I will monitor it, and when it slows down again, I will retest the drive.