Final Fantasy II issue

[gunner14]

So Final Fantasy II is completely playable, no lag or crashing or FPS drops. Running on Windows, version 1.8.0 (1.7.4 previously).

But there are two issues I keep running into:

Character sprites sometimes don't update correctly, and you'll get them spasming between two different ones (like when a character is casting magic they'll swapping between arms up and arms down)

Text Shadows hang on the screen when swapping character panels in the menus and between weapons in the shop.

Any ideas what settings to tweak to help reduce or remove these?