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FPSFlow

FPSFlow is a Fabric client-side optimization mod for Minecraft that significantly improves frame rates and reduces micro-stutters through intelligent culling, level-of-detail rendering, and adaptive performance tuning.

• Java: 21+ (25 for MC 26.2)
• Download on Modrinth
• Source Code

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Core Features

• Entity Culling — frustum, occlusion, and distance culling with async raycasts
• Entity LOD — render-throttles distant entities without removing them
• Nameplate Culling — hides distant name tags with hysteresis
• Block Entity Culling — skips distant block entities
• Particle Optimization — cap + distance-based density LOD
• Background FPS Limiter — caps FPS when unfocused/minimized
• World Join Optimizer — tightens culling during chunk loading
• GUI Optimizer — hotbar dirty-flag tracking and HUD throttling
• Adaptive Renderer — FPS-aware dynamic culling adjustment
• Lithium-Inspired Utilities — compact sine LUT, cached directions, fast BlockPos helpers