Universal Optimization Mod (1.21.1, 1.20.1) – Play Without Sudden Stutters

Universal Optimization Mod cuts down game lag by controlling mob spawns and reducing stuttering. It turns off mob collisions so creatures do not push each other around and waste processing power. The mod also saves recipe details and chunk information to stop sudden freezes during exploration. Players can set strict spawn rules for individual mobs or cap the total mob count in the world.

Features:

• Mob Collision Removal: Stops mobs from bumping into each other, saving CPU power and raising frame rates.
• Recipe Caching: Stores recipe data on disk to stop freezes when browsing crafting menus in mods like JEI and EMI.
• Spawn Limiter: Sets custom spawn limits on specific mobs or applies a total entity cap across the whole world.
• Caches chunk information to reduce microfreezes when crossing chunk borders.
• Freezes mob AI beyond set horizontal and vertical distances while keeping boss mobs active.
• Blocks distant mob spawns so mobs do not appear too far away from the player.
• Disables advancement checks in the background to free up system resources.
• Includes optional movement features like automatic bunnyhop and airhop for fast travel.

Configuration:

["Collision Settings"]
	disableEntityCollisions = true

[NoAdvancements]
	disableAdvancements = true

["Recipe Cache"]
	enableRecipeCache = true

["Bunnyhop Settings"]
	enableBunnyhop = false
	baseSpeedMultiplier = 1.0
	sprintMultiplier = 1.1
	speedEffectPerLevel = 0.1
	airControlFactor = 0.41

["Airhop Settings"]
	enableAirhop = false
	airhopAutoMode = true
	airhopDelayMs = 515

["Mob Blocking Settings"]
	enableMobBlocking = true
	blockedMobs = ["minecraft:zombie 40", "minecraft:skeleton 40", "minecraft:creeper 12", "minecraft:spider 25", "minecraft:cave_spider 15", "minecraft:ghast 6", "minecraft:wither_skeleton 25", "minecraft:bat", "minecraft:rabbit", "minecraft:ocelot", "minecraft:parrot 5", "minecraft:tropical_fish 5", "minecraft:pufferfish 4", "minecraft:cod 5", "minecraft:salmon 5", "minecraft:axolotl 5", "minecraft:frog", "minecraft:tadpole", "minecraft:glow_squid 5", "minecraft:squid 15", "minecraft:strider", "minecraft:bee", "minecraft:endermite 7", "minecraft:phantom 4", "minecraft:guardian 7", "minecraft:silverfish 7", "minecraft:vex 7", "minecraft:drowned 20", "minecraft:elder_guardian 5", "minecraft:warden"]
	allMobsLimit = 700

["Mob Blocking AiLod Settings"]
	enableMobBlockingAiLod = true
	mobBlockingYDistance = 16
	mobBlockingXDistance = 32
	mobBlockingExcludedMobs = []
	mobBlockingYIgnoredMobs = ["minecraft:ender_dragon", "minecraft:wither", "minecraft:ghast", "minecraft:phantom", "minecraft:vex"]
	mobBlockingXIgnoredMobs = []

["Limit Far Spawn"]
	enableSpawnLimiter = false
	SpawnRadiusChunks = 7
	IgnoredEntities = []

Screenshots:

Universal Optimization Mod Download Links