If you're looking for even higher performance (FPS) on 1.19.1, consider looking into Fabric with Sodium and Lithium. If you run into issues, let me know: Are you using Forge or a vanilla installation ? Did you get a Java error ? I can provide the specific steps to fix it. How to Download & Install Optifine in Minecraft 1.19.1
You might need to click "Preview Versions" on the official OptiFine download page to find the 1.19.1 release. Thanks for downloading Optifine 1.19.1
Glad I could help you get set up with OptiFine 1.19.1! It makes a massive difference for performance and shaders in Minecraft. If you're looking for even higher performance (FPS) on 1
If you are looking to get the best performance, here are some key takeaways from the community: Thanks for downloading Optifine 1.19.1