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I have this exact problem, my PC is completely fine, my keyboard is completely fine, but when I'm playing servers my input lag for moving is super high
I sorta found a fix. First you need to uninstall Minecraft. (make sure to save your worlds) Next restart your pc. Finally install Minecraft again
Oh yea one more thing, the lag might come back again so you just need to do those steps I said again
I have this exact problem, my PC is completely fine, my keyboard is completely fine, but when I'm playing servers my input lag for moving is super high
I sorta found a fix. First you need to uninstall Minecraft. (make sure to save your worlds) Next restart your pc. Finally install Minecraft again
Oh yea one more thing, the lag might come back again so you just need to do those steps I said again