In 1.3 I find a bit of performance drop in the inventories (mine or trading), the mouse pointer drags and lags, but the FPS only drop by 2 or 3.
Also on the world map, when I turn around it's very "clunky" and "snappy" technically speaking. No problems during big battles or scenes, stable 60 FPS.
Maybe it's me (any hit where to look in case it is actually me?), but in years of Perisno, this is the first time I experience it.
PS: I tried turn off HDR and shaders but it's the same, I have textures on demand ticked.