Applications like RivaTuner (often installed with MSI Afterburner) or GeForce Experience's "Whisper Mode" can impose strict FPS limits to save power. 3. The 2011 Classic: "Native" Image Quality Fix
The most common cause of a precise, low FPS cap is a setting in the game's configuration file that overrides in-game menus. : Navigate to Documents\Call of Duty\players .
seta com_maxfps 0 seta r_vsync 0 seta r_multithreaded_device 1 seta cg_fov 80 // unrelated but helps UI stability seta cl_packetdup 0 seta r_fastSkin 1
Even with GSync/FreeSync off, the game sometimes forces VRR.
Call of Duty: Modern Warfare 3 (MW3) is stuck at 45 FPS, it is likely due to an accidental software cap or a specific unoptimized configuration setting rather than just weak hardware. Quick Fixes for FPS Caps