Record Minecraft without lag?

How can I record Minecraft without it constantly lagging during recording?

Buy better hardware. The recording obviously needs a lot of power in addition to the processor-heavy game.

Try to set Minecraft down from the settings or you set the resolution down e.g. With obs (in settings for video) and set the process priority (with advanced) to high and then try again

if that doesn't work, write what hardware you have in your pc

and lay Minecraft or your recording program