So I jumped ship from Windows to Kubuntu last night, and It's mostly been pretty good. However my general performance of the computer has been abysmal. Like it takes upwards of 5 seconds to open anything. All of my hardware seems to be running at max speeds, so I have no idea why it would be so sluggish? It's as if I'm running on 2gb of ram and a cpu at like 1.5ghz. My specs are:
i7-8700k at 4.7mhz max
Amd Rx 6750xt
16gb ram at 3200mhz
Linux is on an m.2
Any ideas? This is practically unusable for any normal operations, let alone any gaming.
Just a guess: you might actually be running the CPU at a low frequency. As in the frequency scaling driver isn't working.
Maybe poke around on a performance monitor tool. Seems like there's "Plasma System Monitor" on KDE. Make sure the tool can see all the RAM, all of the CPU cores (2x physical cores with Intel hyper threading).
It should also report the CPU frequency, which should go up and down depending on the load. You can also check that the CPU temperature report is reasonable.
This also gives you process info, so when one of these 5 second freezes happens, you should be able to see what shoots to the top of the list. Or maybe there's a background task churning through a bunch of stuff. Or maybe the flash access is really slow.