Just in case if you didn’t know. DaFluffyPotato on YouTube has amazing channel for Pygame and even free course. He knows how to get a good performance with Pygame.
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I know about Dafluffypotato and I love what he does, but I haven't used any of his code or his tutorials. I prefer to solve problems myself without help from other people. The most help that I let myself get is the theory of the code, but never a line by line tutorial. I love what he does, but I haven't used any of his optimisations. Thanks for your feedback and have a nice day!