Integer Scale (Pixel Perfect) PSX problem

[alpermis]

If I enable Integer Scale (Pixel Perfect), other systems that I use works as they should. But PlayStation 1 does not scale at all. It shows as 640x480 (just a guess of resolution) in 1920x1080 screen. So much smaller and many spaces around.

If I disable Integer Scale (Pixel Perfect) it streches to full screen.

Not an end of the world kind problem. Just reporting to contribute.

Regards,

https://file.ac/O3gREshrs2U/