Minecraft shaders sudden low fps

[Tasit]

Hello I've been playing Minecraft for awhile on this pc and it was running fine untill i installed some drivers and now Minecraft and only Minecraft just doesn't want to run above 40 fps and the average is 20-30 fps while using SEUS shaders I've searched everywhere but I can not figure out a single fix and I've even tried reinstalling Opti fine I've tried to uninstall my driver and even roll back my driver but when i try to roll back the option is greyed out. I've tried to allocate more ram and that didn't help anything either I just don't understand why I'm getting such low frames on parts that shouldn't be giving me low frames 
gpu:Gtx 1660 super 6gb.
cpu:ryzen 5 2600
ram:1x8gb 
pw:500w
mb:ASrock A320m-hdv R4.0
 

[flo_306]

Seus shaders are very GPU intensive. You can try to lower the render distance. 

Also: please provide further information: 
- What were your FPS before the driver update?
- what version of Seus are you using? (Ultra, high, medium, lite)

- are you sure that you dont have a FPS limit set in the video options?
- do you have enough RAM allocated to minecraft?

[Tasit]

my frames were hitting from 60-90 fps before anything and im using medium my limit is 140 fps and ive allocated 4 gigs of ram . my render distance is 8 chuncks and ive been able to run about 16 before and still get more then over 60 fps