[1.8.9] Random mouse acceleration only inside Minecraft

[PearooXD]

Description of Issue

So I've been playing with Minecraft for quite a long time, around 6 years to be exact, and I've had this issue only once. The problem is that whenever I'm using any Optifine related game version, regardless of whether it's the official Minecraft launcher or a modded launcher such as Lunar or Feather, my mouse randomly accelerates even with mouse pointer precision disabled. My mouse is specifically for gaming and the polling rate is at 1000 Hz. When I change it to 500Hz, it becomes a bit more usable, but then it changes in other games too, which I don't want it to.

Steps to Reproduce

1. Launch minecraft using Optifine 1.8.9 HD M5 and just look around.

OptiFine Version

1.8.9 HD M5

Installation Method

I installed Optifine with Skyclient.

Fabric/Forge Version

Forge 11.15.1.2318

Other Installed Mods

BazaarNotifier-1.4.12 betterchat-1.5 CrashPatch-1.4.0 Danker.s.Skyblock.Mod-1.8.7-hotfix1 dungeonsguide-3.7.8 Hypixel Autocomplete-1.1 (1.8.9) Hytils-Reborn-1.5.0 LevelHead-8.2.2 (1.8.9) NotEnoughUpdates-2.1-Watching-3 Optibye-1.0.0-dep OptiFine_1.8.9_HD_U_M5 Patcher-1.8.3 (1.8.9) Scrollable Tooltips-1.4 (1.8.9) SkyblockAddons-1.7.0-for-MC-1.8.9 SkyblockClient-Updater-1.3.1 SkyClientCosmetics-1.1.9 Skytils-1.2.6

F3 Debug Screenshot

Prior Testing

• Does this happen in Vanilla without OptiFine?
• No.

[ZenIsBestWolf]

This is not an OptiFine bug, this is a vanilla issue.

[NightDevlopment]

lol