Dual Monitor Refresh Rate Mismatch: Fix 240Hz + 60Hz DWM Stutter
Fix Windows Desktop Window Manager (DWM) frame dropping when running a high-refresh gaming monitor (144Hz/240Hz/360Hz) alongside a secondary 60Hz display.
Desktop Window Manager (DWM) Clock Synchronization Conflict
When media (YouTube, Twitch, Discord) plays on a secondary 60Hz monitor, Windows DWM forces the primary high-refresh monitor down to 60Hz or skips alternate frames.
The classic dual-monitor stutter bug is caused by DWM attempting to synchronize window composition across displays with mismatched refresh rates. When a 60Hz video plays on screen 2, DWM drops frames on screen 1, turning your smooth 240Hz monitor into an uneven stuttering mess. We configure Multi-Plane Overlay flags, GPU hardware scaling, and exclusive fullscreen overrides.
GPU Display Scaling Mode Calibration
Setting scaling to GPU with No Scaling override to prevent DWM composition clashes.
Multi-Plane Overlay (MPO) Flag Configuration
Allowing the primary gaming monitor to bypass DWM desktop composition entirely.
Hardware Acceleration on Secondary Apps Calibration
Preventing browser video playback from dragging down monitor refresh clocks.
0.500ms Timer Resolution Lock
Locking scheduler frequency to eliminate simulation tick drift.
Ready for Flat Glass-Smooth Frametimes?
Every system is calibrated live via AnyDesk by Yassine. We strip DPC latency, eliminate micro-stutters, and dial in memory sub-timings. If your system does not feel measurably faster with lower input delay, you receive an immediate 100% refund.
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