UE 5.03 Compiling shaders issue - launching editor takes forever

Projects take forever to start in UE5.03, it jams at compiling shaders, to a point where it’s almost unusable. It was working all fine with UE4.27.
I read the previous posts on that topic, and I tried two suggestions that worked for a few times, but strangely the problem came back again.
Adding r.ShaderCompiler.JobCacheDDC=1 in the BaseEngine.ini (and DefaultEngine.ini)
and also activate r.XGEShaderCompile = 0 in the ConsoleVariables.ini

I don’t understand why this is not a default behavior, since it is so painfully slow.

Can anyone help me solving this problem please?

Just go to 5.1. Shaders only compile when needed then.