Minecraft shaders

Question about getting this working properly, sorry for my ignorance on most things Minecraft.

I’m new to this modding thing.

Using MC 1.11.2.

How to make minecraft look realistic on xbox

I currently run Forge, Optifine with Sonic Ether’s Unbelievable Shaders, and a Joypad mod so I can run multiple instances of MC and play with my son using one PC.

With those mods, I run between 20-60 fps, depending on the scene, and it looks gorgeous, even with two instances running.

The textures in your photorealistic pack look amazing, but when I add them, my frame rate drops below 1 fps.

Actually, what it does is I’ll get 30fps for about 2 seconds, then the image will hang for 2-3 seconds, then 30fps for 2 seconds, hang for 2-3 seconds, etc. So it works for a few seconds on, then off, then on, then off.

What I’m wondering is if the issue is the 128x resolution (this is currently the only available resolution for 1.11, I see) or if I need to disable something somewhere to make it playable.

Any info would be great!