Pc worse fps performance after latest windows update

My pc since the latest windows update (KB5065426) has dropped in performance in games substantially, it also takes about 3 minutes to now get my start up apps up and running on a fresh start up. Temps are fine. I’ve ran dism scans and repaired some files. Done a fresh ddu driver install. Tested every part- bench marked and everything is working fine. Scanned for malware and found nothing. Deleted the update and reinstalled it. Ssd health has 96% health. Ram xmp profile still at 6000mts. No over heating in cpu gpu etc. Made sure I’m still on balanced power setting. I still seem to have normal GPU and CPU utilization (50% gpu and 10-15 cpu % on world of Warcraft) https://www.userbenchmark.com/UserRun/71252401 You can find my Specs in the Benchmark.. I feel like I am out of options and have no clue what happened after the update