01.The G-Sync Golden Rule (BlurBusters Bible)
There is a myth that "V-Sync adds lag, so I should turn it off." This is true for fixed 60Hz monitors. But in the world of VRR (G-Sync/FreeSync), the rule changes.
The BlurBusters website proved with high-speed cameras that G-Sync NEEDS V-Sync enabled in the Control Panel to cover "Frametime Tearing." If you use G-Sync without V-Sync, you will still have tears at the bottom of the screen when frametime varies.
⚖️ Auto-Sync via Voltris
Configuring the trio (G-Sync + V-Sync + FPS Cap) manually is a lot of work. Voltris Optimizer applies an "E-Sports Sync" global profile that automatically configures the FPS limiter based on your monitor and V-Sync driver locks.
Optimize SyncDon't do it Manually.
Voltris Optimizer automates this entire guide and removes Windows delay in seconds.
02.Step 1: The Holy Setup
Follow EXACTLY in this order:
Nvidia Panel > Set Up G-Sync
Check "Enable for Full screen mode". (Windowed mode can cause stutter in Windows DWM).
Nvidia Panel > Manage 3D Settings
Vertical Sync: ON.
IN-GAME
V-Sync: OFF.
FPS Limit: OFF or unlimited.
Nvidia Panel > Max Frame Rate
Cap at Hz - 3.
- 144Hz -> 141 FPS
- 165Hz -> 162 FPS
- 240Hz -> 237 FPS
03.Why cap 3 FPS below?
G-Sync only works within the range of the monitor (e.g., 48Hz to 144Hz).
If your game hits 145 FPS, G-Sync turns off automatically. At that moment, the V-Sync you turned on in the driver kicks in, causing sudden massive input lag.
By capping at 141 FPS, we ensure the game NEVER touches the 144Hz ceiling. This way, G-Sync stays active 100% of the time, and the driver's V-Sync is never truly triggered (it's just a "safety net").
A1.LFC (Low Framerate Compensation): The Savior
What happens if my FPS drops a lot?
Suppose your FPS drops to 40 FPS on a 144Hz monitor (whose minimum range is 48Hz). G-Sync should turn off, right?
Wrong. That's where LFC comes in. The monitor duplicates the Hz to keep up.
GPU: 40 FPS.
Monitor: 80 Hz (Shows each frame 2 times).
This maintains visual fluidity even with poor performance.
A2.Brightness Flickering Problem
Some VA monitors (prone to this) flicker light when LFC kicks in and out (at the 48Hz transition).
Solution: Use the CRU (Custom Resolution Utility) program and increase the minimum FreeSync range to 70Hz or 90Hz. This forces LFC to stay "Always Active" in heavy games, avoiding the transition oscillation.
Verdict: Competitive vs Single Player
CS2 / Valorant: If you have constant 400 FPS, TURN everything OFF (G-Sync Off, V-Sync Off). Let tearing happen. At very high FPS (300+), tearing is micro and barely visible, and latency is the lowest possible.
Warzone / Apex / AAA Games: FPS varies a lot (100-180). Here G-Sync shines. Visual consistency helps you track targets better than having 1ms lower input lag but with a completely torn image.
Don't do it Manually.
Voltris Optimizer automates this entire guide and removes Windows delay in seconds.
Written by a verified expert
Douglas Felipe M. Gonçalves
Expert in Windows system optimization with years of experience in hardware diagnostics, kernel tuning, and advanced technical support. Founder of Voltris and developer of the Voltris Optimizer.
Meet the Voltris TeamConclusion and Next Steps
By following this guide on Synchronization Engineering: G-Sync, FreeSync, and the Quest for Zero Tearing, you are equipped with the verified technical knowledge to solve this issue with confidence.
If you still have difficulties after following all steps, our expert support team is available for a personalized remote diagnosis. Every system is unique and may require a specific approach.