Iris incompatible with Amd Gpu?🤔

I have an amd 6650 XT, intel i5 9400f, 48gb ram, and I still get bad framerate with shaders. I've tried setting my render distance to very low. I've set the shaders to low. DH doesnt seem to affect it, I get the same fps without it. I've allocated an entire ram stick to mc, and idk what to do. In the photo, DH on 128 distance low, BSL shaders low.