Bochet

There are no issues with OptiFine. It's doing what it should.

Right clicked on desktop, opened NIVDIA control panel > Manage 3D Settings > Program Settings > Clicked add > Chose javaw.exe > Clicked apply. Misread your post. I right clicked on the program as instructed and there wasn't the option to do that. ;o

I tried to do this, but there was no "Run with Graphics" option. Unless I did this wrong, it's not helping.

So, recently my friend introduced me to tekkit. This was my first time playing minecraft on my new computer. And the FPS... was terrible. I was really confused because i have a decent quality computer, and yet i was getting 5-15 FPS, even on the lowest graphic settings. So I got vanilla minecraft and messed around on that. On max settings I was hovering around an average of 60fps. On the lowest graphics I was hitting about 90fps. I know these aren't impressive numbers, but they are so much better than 5-15 FPS. Is there anything I can do to improve the FPS for tekkit? It just feels wrong that the change is that drastic. It makes it really annoying to play at all. Thanks for any help!