Thanks For Downloading Optifine 1.19.1 -

Simply download, run the JAR file with Java, and click "Install". Make sure your Minecraft launcher is closed first.

To use it with Forge, just drop the downloaded file into your /mods folder. Thanks for downloading Optifine 1.19.1

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 Simply download, run the JAR file with Java,