Win11 build 21h2 : IDE 2.03 slows PC and hang on compil, IDE 1.8 OK

Hello Arduino community,
IDE 2.03 installed in local mode, same as IDE 1.8.
Firewall / AV are OK, no privileges issues, I am confortable with that.
PC becomes very slow after launching IDE 2.03 and IDE hangs if compils. Not the less strange thing is that is everything is at 0% of activity in taskmgr in spite the computer is becoming very slow. Killig application changes nothing, no other way to recover than restarting the PC, because I can't identify the failed process.
No related message in eventmgr.
Fortunately, I tried IDE 1.8 and it works fine in same conditions.
Any idea or just waiting for a newer release ?
EDIT : launching 2.03 in powershell shows an error " passthrough is not supported, GL is disabled, ANGLE is"

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