Input lag in Apex Legends affects how quickly your crosshair responds to mouse movement. The game's fast-paced movement and small hitboxes make input responsiveness critical. Here's how to minimize every source of input latency.
Adaptive Resolution — Turn It Off
Apex has an Adaptive Resolution FPS Target setting that dynamically lowers render resolution when FPS drops. This adds input latency from the upscaling work. Set this to 0 to disable it completely.
Exclusive Fullscreen
Apex should always run in exclusive fullscreen mode, not borderless windowed. Borderless routes the game through Windows Desktop Window Manager, adding a frame of display latency.
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See Services →V-Sync and Frame Pacing
Disable V-Sync both in-game and in your GPU driver settings for Apex. Use G-Sync/FreeSync with V-Sync disabled for tear-free gaming without the latency penalty.
USB and Mouse Optimization
- Plug your mouse into a rear USB port directly on your motherboard
- Set mouse polling rate to 1000Hz or higher
- Disable USB selective suspend for your mouse's hub in Device Manager
- Turn off mouse smoothing in Apex console or autoexec.cfg