Heracles

Technical optimization mod focused on drastically reducing MSPT, alleviating CPU load, and stabilizing memory.

Available on NeoForge

Crowd Control: Optimization of collision tests and movement events to reduce lag in dense areas (players/entities).
AI Throttling: Dynamic regulation of CPU load consumed by mob AI.
Explosion Caching: Caching of explosion calculations to prevent lag spikes during massive destructions.
Block Entity Stasis: Puts block entities (furnaces, chests, etc.) into sleep mode when out of player range.
Multi-threading: Offloading of AI calculations and network management onto Virtual Threads.

Warning! Incompatibilities are possible!

Network Management (QoS): Packet prioritization system and rate limiting to prevent bandwidth saturation.
Async Furnace Ticking: Asynchronous processing of furnace smelting to free up the main loop.

To demonstrate its performance, I conducted tests with optimization modpacks, which proves the mod's usefulness (the most well-known ones).

Rendering Engine & Graphics: Sodium, Iris, Distant Horizons, ImmediatelyFast, EntityCulling, Dynamic FPS, MoreCulling.
Logic & Memory: Lithium, ModernFix, FerriteCore, Krypton, Create Better FPS.