What games are lacking and what resolution/ graphics settings? UB looks alright, no obvious thermal throttling, ram running at speed and ssd not too full. Not much more you can do hardware wise on that motherboard, maybe 9900 for HT which 9700k is lacking that can make a difference nowadays.
Background usage seems high at 22%. If there was something else running while testing UB then don't worry about it. If not sure why background usage is highish then run virus scan, check task manager/ startup items. Maybe reinstall Windows if Win11 was an upgrade. Rule of thumb after an upgrade is reinstall for clean os.