Major Optimization needed

I should mention this is happening on Linux. I’ve done testing and crashes happen on Windows to just not as often. Also it is WAY faster to load on Windows. but could also be from SSD? I think I could literally boot into a level(with no content) in 20 seconds or so with Windows, but on Linux sometimes it is about 15 or so minutes(with content)!
On HDD it is taking 15 minutes yes, and testing on SSD it is taking seconds.
The hardware is more than good enough.
I’m not sure what to do because content takes up hundreds of GB, and most SSD don’t hold a whole lot… I can’t use a SSD for unreal because of this, unless theres a way to put project content on a HDD and the engine itself on a SSD, would that be possible and fix the issue? I haven’t tried it as I assumed everything had to be on the same drive.
I’m not using any custom code as of this time.
I have no experimental features enabled.
I never cleaned the saved folder or the DDC folder. Is that recommended for this? Is there any drawbacks to doing so?
I have real time previews disabled.
As I haven’t done so before, how do I provide callstack from the Crash Reporter? Is there a way I can find logs even if it was turned off?

Is it normal that my unreal engine folder itself is over 210GB? I’m not talking about the projects folder. It seems like way to much, I have no idea why that is either. It’s in the Engine folde, the Saved folder almost 30GB, Source folder 12.8GB, Plugins 12.7GB, Intermediate 23GB, Deriveddatacache 112GB!