Hi everyone.
So I upgraded my rig, and after reading everything and tested everything I could, I concluded that my laptop doesn't want to run SH4 in any resolution but 1024x768 in windowed mode. On that resolution, it works like a charm (intel grpahics, as it doesn't like my nvidia, although it doesn't need it), but now I'm out of ideas. The big question is if there is a solution for that. (I've tried the cgf files, I already checked the net framework thing, and all good, LAA, etc.) Mostly, everything was covered and I ran out of ideas...
Some of my specs.
GTX 1660 Ti
Windows 10 10.0.18363 18363 and 16GB RAM.
Many thanks to all.