I highly recommend using the open source Sodium and Lithium mods to improve performance. And I hope you're not still using OptiFine!
https://github.com/CaffeineMC/sodium
https://github.com/CaffeineMC/lithium
I don't use OptiFine but care to explain to someone not in the loop why they should avoid OptiFine?
I don't use OptiFine but care to explain to someone not in the loop why they should avoid OptiFine?