While I have access to a 4:3 projector, as @turkishdelight said I want to keep as much of the original as possible.

I’ve checked, sadly they’re only 16:9 too. Thanks anyway

These seem like blu ray rips, the’re only in 16:9.

It didn’t really solved it,it just felt like it was a lot better.

Can you tell me how you did it? I just found an old guide for lwjgl 2.x.

This fixes the problem but it drops my framerate to about 10 per second.

I don’t have any