Realtime Audio Processing Load Help

I have problem with cubase11 audio performance since one month back, before that everything worked as normal. I’m on Windows11, Acer computer with good specs for music production.
When I check the “Audio Performance” it easily max out, even when only using 1 VST Instrument and I hear the sound pop out very often. This is of course frustrating since it kills all creative flow.
So I’ve scouted the internet and tried to change settings within the studio setup. I updated various drivers, optimized power options within windows and turned of all background programs and so on.
Tried different audio interface. I even did a reset on computer and reinstalled all instruments.
I didn’t update the BIOS since I find warnings this can cause problems.

I’m so longing to just get back to normal. Any help is very appreciated.
Best Regards,