Cod Mw3 45 Fps Fix -
In 80% of cases, the 45 FPS lock in MW3 is caused by a conflict between Dynamic Resolution and V-Sync. The game tries to dynamically scale your resolution to save performance, but if it conflicts with your monitor's refresh rate, it gets stuck.
Step-by-step:
Apply the changes. If the FPS jumps to 60, 75, or 100+, you are done. If it stays at 45, proceed.
If you are playing on a gaming laptop with a 144Hz screen and an external 60Hz monitor, MW3 has a catastrophic bug: It locks to the lowest common denominator. cod mw3 45 fps fix
Fix:
| Problem | Fix Priority | |--------|--------------| | Windowed mode | 1. Fullscreen Exclusive | | NVIDIA Reflex | 2. Turn off “+ Boost” | | DRR in Windows | 3. Disable Dynamic Refresh Rate | | Config file lock | 4. Edit FrameRateLimit to 0 |
Most users solve this in under 2 minutes with steps 1–3. For the rest, the config edit or driver rollback kills the 45 FPS curse for good. In 80% of cases, the 45 FPS lock
🎮 Now go drop some kills without feeling like you’re wading through mud.
Back up the file:
Edit config_mp.cfg:
Disable frame limiting & V-Sync in game and drivers:
Disable Windows Game Mode/Fullscreen optimizations:
Launch the game and verify FPS:
If you land at 45 FPS, run this mental checklist: