Maximize Performance. Minimize Lag. Stay in Control.
UltraPerf is the only plugin you need to run a fast, secure, and well-managed Paper server.
It combines automated lag reduction, 4 live AI optimization agents, a built-in web dashboard, anti-cheat, chat moderation, and a full in-game admin GUI — all in a single jar, with zero external dependencies.
Most servers piece this together with 5 or 6 separate plugins. UltraPerf does it in one, with less overhead, no conflicts, and persistent learning that improves over time.
⚙ Performance Optimization
- TPS and lag profiling — monitors server performance in real time and identifies lag sources such as entities, redstone, chunks, and tile entities
- Smart entity and item stacking — automatically merges nearby mobs and dropped items to reduce entity pressure
- Async chunk loading — loads chunks in the background to reduce lag spikes from teleports and movement
- Dynamic view distance — automatically adjusts view distance based on current TPS — up when the server is healthy, down when it needs room
- Redstone limiter — detects and throttles runaway redstone circuits when TPS drops
- Auto-disable mob AI on lag — suspends mob AI across the server when performance falls below threshold, re-enables automatically on recovery
- Selective mob spawning — control exactly which mob types are allowed to spawn, directly from the in-game GUI
- Periodic entity cleanup — automatically removes dropped items and XP orbs on a configurable schedule
- Auto-tuning — enables and disables optimizations automatically based on live server conditions
AI and Machine LearningUltraPerf doesn't just react to lag — it learns where lag comes from and acts before it happens.
- 4 dedicated AI agents running simultaneously in the background:
EntityAgent,ChunkAgent,MemoryAgent, andFarmAgent - Persistent hotspot tracking — the plugin learns and remembers exactly where lag happens across restarts, including chunk spikes, dense farm areas, hopper-heavy zones, and redstone-heavy zones
- AI confidence from real data — agent confidence reflects live workload signals, issue severity, plan quality, and actual execution success — not a fixed number
- AI action budgeting — caps actions and execution time per cycle to prevent burst-style optimization spikes after heavy activity
- Player Experience AI — analyzes each player's behavior, classifies their gameplay type, and applies tailored optimizations per player automatically
- ML predictive optimization — a machine learning model trains on your server's own data and applies preventive actions before lag occurs, with fully async retraining
Live Web Dashboard- Built-in HTTP dashboard accessible from any browser — no external setup, no third-party services
- Live statistics — TPS, memory, entity counts, AI agent status, ML predictions, and security data in one view
- Authentication — username and password protection with automatic session timeout
- IP allowlist — restrict dashboard access to specific IPs for production environments
- Remote action controls — optional admin actions from the dashboard, disabled by default for safety
- Audit log — every action taken from the dashboard is logged separately
🛡 Security and Moderation
- Anti-cheat with persistent escalation — detects speed hacks, fly hacks, reach violations, kill aura, and more
- 1st detection → kick · 2nd detection → kick · 3rd detection → permanent ban
- Punishment history is saved to disk — players cannot reset their record by reconnecting or restarting
- Progressive chat moderation — spam escalates automatically: warning → mute → kick, state persisted across restarts
- Behavioral analysis — AI-based anomaly detection monitors unusual patterns over time
- VPN and proxy detection — configurable blocking, monitoring, or allow modes
- DDoS protection — connection rate limiting with automatic mitigation
🎛 In-Game Admin GUI
Everything accessible from a single inventory interface — no commands required.
- Full admin menu — toggle every optimization feature on and off in real time
- Live stats view — TPS, memory, entity counts, and ML predictions directly in-game
- Benchmark mode — stress test your server with CPU, RAM, and entity load reporting
- Godmode — toggle invulnerability instantly
- Full health and food restore — one-click admin utility
- Stop Rain — weather control from the GUI
- Lag Buster button — lets players send an instant lag alert to all online admins
- ML statistics panel — prediction accuracy, last prediction, and retraining status
- Built-in help and tutorials — in-game guide for every feature
- GUI themes — default, blue, red, and gold
Additional Capabilities- Per-world optimization profiles — different settings per world, loaded automatically from config
- Adaptive world pregeneration — pre-generates spawn chunks at startup; radius and batch size scale automatically based on detected CPU and RAM
- Fully persistent state — AI agent confidence, hotspot scores, player profiles, sanction history, and moderation state all survive restarts
- Clean console — no misleading warnings, no log spam, informative messages only when they matter
Compatibility- Server software: Paper 1.21.x
- Java: Java 21+
- Dependencies: None
Frequently Asked QuestionsDoes UltraPerf work on 1.21.4 or other 1.21.x versions?
UltraPerf is built and tested on Paper 1.21.x. Minor sub-versions within 1.21.x generally work. Always check the latest release notes for confirmed compatibility.
Will it conflict with EssentialsX, LuckPerms, or other common plugins?
UltraPerf does not modify permissions systems, economy, or core server behavior. It listens to server events and manages its own systems independently.
Is the web dashboard safe to expose externally?
Yes, if configured correctly. Enable authentication, set a strong password, and restrict the IP allowlist to trusted addresses before exposing the dashboard outside localhost.
Will it slow down my server startup?
No. UltraPerf initializes its systems in the background and pauses heavy analysis until players are online. Startup impact is minimal.
Does it require any other plugins or libraries?
No. UltraPerf has zero external dependencies. Drop the jar in and it works.
Can I disable features I don't need?
Yes. Every feature can be toggled individually from the in-game GUI or from
config.yml.UltraPerf replaces your lag monitor, entity manager, anti-cheat, chat moderator, and admin toolkit — in a single plugin that gets smarter every restart.
One installation. Full control.
One installation. Full control.
