Pixelation on certain animations

My 5,1 also has pixelation with an RX580 Sapphire Nitro+
Not all cards are fully supported even tho the game will play.
There used to be a list of supported GPU’s but I lost the link.

My workaround is to change texture from high to low then back to high In Act 1 Town ie New Tristram. I’m sure this won’t work for other machines.