Shadows are noisy when Screen Space GI is enabled.

Development Rendering
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I have been using UE5 for over a year now and I have been struggling to understand how to fix this issue.
So whenever I use screen space GI, the shadows become noisy and grainy, if I use other GI options, this issue disappears.
I also noticed that by increasing the project scalability the noise becomes less noticeable.
So I would like to know what is the feature/console command inside of Screen Space GI that is causing this.

Tried tweaking some values on the console that I thought it would ease the noise but nothing, heres some of the console commands I tried

r.FastVRam.ScreenSpaceShadowMask
r.FastVRam.ScreenSpaceAO
r.Shadow.Denoiser

Ps. The hair cards flickering its caused by something else, if someone knows what it is, please share the cause of it, I would appreciate it!

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Found it.

Type “r.SSGI.Quality 4” on the console command and the noise goes away. You can also choose numbers between 0-4 if performance is an issue.

It doesnt fix the hair flickering, so if someone comes across this post, I would appreciate some help.

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