Well, that's a different answer than what I received before, thanks for that.
In my community folder, I have 197 files including aircraft, airplane, and airport textures (132GB). My hard drive is a WD Blue SN580 NVMe, 1TB, M.2, 4150 MB/s Write, 4150 MB/s Read, with 90.7GB free.
Now, as I said in the first post, the issue is with aircraft from different developers like PMDG. If I install GSX and use the Cessna 172, it works but with errors. However, when I try to use the PMDG 737, or the 777F, or the FBW A320, etc., everything definitely freezes.