Problem Description:
Lag Spikes: The game runs at 500 FPS, but I experience brief lag spikes when new chunks are being loaded. These spikes last less than a second but occur frequently.
Environment: The issue occurs in both modded and vanilla versions of Minecraft, with or without OptiFine and other performance-enhancing mods.
Onset: This problem began occurring recently without any changes to the hardware components. The same PC used to run Minecraft smoothly before the issue started.
Hardware and Software Checks:
Reinstalled Java and Minecraft.
Disabled antivirus.
Updated drivers and Windows.
Checked for thermal throttling; temperatures were within normal ranges.
Ensured the game and Java are running on the NVIDIA GPU instead of integrated graphics.
Hardware Specifications:
Processor: Intel Core i5-9400 CPU
GPU: NVIDIA GTX 1660 SUPER
RAM: 16GB
Storage: 932GB SSD, 380GB free
OS: Windows 11 Pro (64-bit)
Motherboard: ASUS PRIME B365M-A
Linked issues
Comments

Thank you for your report!
We're tracking this issue in MC-273024, so this ticket is being resolved and linked as a duplicate.
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