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I have a pretty low-end PC that runs low-graphic games when it is having a good day (when it doesn't crash every two minutes).

I recently downloaded OptiFine, and after a bit of playing, I noticed that sometimes I get big lag spikes. I can't determine if OptiFine is causing the problem or if it's actually my PC just being laggy by itself. I know OptiFine promises that it makes Minecraft run smoother, but considering sometimes things lie to make it look better, I would like to know if it actually does that.

Note: I do not play with shaders or texture packs, so those aren't the reasons.

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    That depends on settings.
    – Skye-AT
    Commented Jan 20, 2022 at 7:31
  • Try playing without OptiFine and see if it is less laggy. If so, it's either a problem with OptiFine or your settings. You do not need to uninstall OptiFine to do this, you can just switch from "OptiFine 1.18 etc..." to "Latest Release".
    – TheKodeToad
    Commented Jan 20, 2022 at 9:38
  • Alright i'll try it out the next time I play minecraft and compare the gameplay, I never thought of that so thanks.
    – ChocolateChara
    Commented Jan 20, 2022 at 13:52
  • "I would like to know if it actually does that" --- Everyone I've heard says it makes the game run faster, including people i know personally, so it's not lying about that. You might be having a bug, or your computer is just the exception for some reason. It's supposed to help low end pcs run better too, so i hope you can figure it out. =)
    – Millard
    Commented Jan 20, 2022 at 16:05

2 Answers 2

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If you are experiencing significant lag-spikes, it is most likely because your settings are set to high quality. Try lowering them to make the game run faster (for example, I have a Ryzen 3 CPU, and I have my render distance set to 8-chunks and it runs just fine).

Another reason is possibly because OptiFine is glitching (although based on my experience with OptiFine, it is rare for it to glitch out).

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I recommend not using OptiFine, and instead using Fabric + Sodium (and other mods). Fabulously Optimized is a good modpack.

If you have specific Forge mods you need to use, I recommend not playing with them, as Forge performance sucks.

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