PUBGInput lagUnreal Engine 4

Fix input lag in PUBG

Work through these in order — they're sequenced to find the cause fastest, not alphabetically. Most input lag cases in PUBG resolve by step three.

Turn on the vendor latency tech

NVIDIA Reflex (or AMD Anti-Lag 2) is the single biggest input-latency win in supported titles — it can cut total system latency by 20-40%.

V-Sync off (use a cap instead)

Classic V-Sync queues frames and adds tens of milliseconds. Use an FPS cap just under your refresh rate plus VRR (G-Sync/FreeSync) for tear-free play without the queue.

Exclusive fullscreen where the game offers it

Borderless adds a compositor hop on some setups. If the game has true fullscreen, it's the lower-latency path.

Check your monitor's game mode + cable

TVs and some monitors ship with processing that adds 30-100ms. Game Mode bypasses it. Use DisplayPort/HDMI 2.1 at your panel's native refresh.

Mind the frame-gen tradeoff

Frame generation doubles displayed FPS but adds latency — fine for visual smoothness, wrong for competitive play. Keep it off in ranked.

Still input lag? Get the full diagnosis.

The free playbook analyzes your exact GPU + CPU + monitor combo, names your bottleneck, and ranks every PUBG setting by FPS impact.