Okay before I even begin I would say my computer specs definitely can handle shaders for several reasons but here they are:
CPU: Intel i5 7500
GPU: Radeon RX 590 8GB OC
RAM: 16 GB
A few weeks ago I moved from BE to JE because I wanted to run real shaders and I wanted to try out RLCraft. However, before installing RLCraft I wanted to check out the game with SEUS shaders so I installed Optifine and the shaders and it worked perfectly. The next day I installed RLCraft (with shaders) using twitch desktop app and it worked as well. On the other side after installing it I tried to open normal launcher to play some vanilla Minecraft with shaders but the game would freeze and crash right after loading on the map (works fine without shaders). I also tried to turn off the shaders and turn it back on after loading the map but the same thing would happen. I searched on google for a solution and did not get any useful help. I hope I can get help here. Thanks!
I also want to mention that I tried to tweak the setting and reduce it a lot but the result was the same.