I have a reasonably good gaming PC, I use it to play many different games, most of which are more intensive than Minecraft. While I've read many posts on this issue already, none have really helped me. While playing I experience random frame rates from around 20-50 fps, which changes frantically and impacts my gameplay. I've heard of issues with AMD hardware and java, I've already made sure my java is the latest and is 64-bit. I've tried optifine, and while it does increase it slightly, it doesn't do wonders and I'd much rather play vanilla. I'll leave my specs below with hopes that someone can help. Thanks in advance!