PPSSPP texture scaling and auto frame skipping

[belmont1990]

Having texture scaling on OFF gives some 2D graphics glitches when resolution is set to higher than native, also 2D elements gets sharper and more clear with xbrz for my taste.

One more thing - in texture filtering we have nearest (looks terrible) linear, linear on FMV and auto.
Auto is giving me the same as both linear and linear on FMV, what is the difference between those options??