Should I Disable Fullscreen Optimizations for Valorant?

When It Makes Sense

• Good fit: You are a competitive or ranked Valorant player who wants the lowest possible input lag and the most direct display path. Windows’ fullscreen optimizations can cause a game that is set to “fullscreen” to be presented through the Desktop Window Manager (DWM), similar to borderless windowed mode. This extra compositor step may add a small amount of latency or cause micro-stutters on some systems. If your mouse or aiming feels slightly delayed, frame times are inconsistent despite a high FPS counter, or older forum threads and patch notes suggest FSO is interfering, disabling the optimization for Valorant may restore a more exclusive fullscreen experience and improve responsiveness. The change is especially likely to matter on older Windows builds, lower-end GPUs, or laptops where every millisecond of frame delivery counts.
• Good fit: You are actively troubleshooting fullscreen behavior. Signs that fullscreen optimizations are changing how Valorant runs include the game minimizing unexpectedly when you click a second monitor, overlays appearing inside the game even though it is set to fullscreen, Alt-Tab behaving like a borderless window, or the screen briefly flashing when you launch the game. Disabling FSO for the Valorant executable is a quick, reversible test that can help isolate whether the compositor is responsible. Because the setting can be applied to just the Valorant shortcut, it is a low-risk experiment compared with changing global Windows settings or registry values.

When You Should Avoid It

• Warning sign: You stream, record, or heavily use overlays. Capture tools such as OBS Game Capture, Discord Overlay, NVIDIA GeForce Experience overlay, AMD ReLive, and Xbox Game Bar often rely on the modern presentation path that fullscreen optimizations provide. Disabling FSO can cause a black screen in captures, force you to use the less efficient Display Capture mode, break overlay notifications, or make streaming software unable to hook into the game at all. If content creation or social overlays are part of your routine, the convenience and compatibility trade-off usually outweighs the uncertain latency benefit.
• Warning sign: You use multiple monitors, HDR, or variable refresh rate (G-Sync/FreeSync) and value smooth Alt-Tabbing. Fullscreen optimizations help Windows manage focus changes, color output, and refresh-rate switching between a fullscreen game and the desktop. Turning them off can make Alt-Tab slower, cause temporary black screens or flicker, and in some setups interfere with how adaptive sync behaves in exclusive fullscreen. Additionally, modern GPUs and recent Windows versions have reduced much of the historical overhead of the DWM, so the benefit of disabling FSO on a current, clean system is often smaller than it was several years ago.

Pros and Cons

Pros

• Potentially lower input lag and more consistent frame pacing. By bypassing the DWM composition path for Valorant, the game may be able to present frames more directly, which some players experience as a crisper, more responsive feel during fast aiming and peeking.
• It is a targeted, reversible change. You can apply the compatibility flag only to the Valorant executable, leave the rest of your system unchanged, and remove the check mark at any time if you encounter problems or decide the benefit is not worth the hassle.

Cons

• Overlays, game capture, and streaming integrations may break or need workarounds. Many modern tools assume the game is being composited by Windows, so forcing an exclusive-style fullscreen path can lead to black captures, missing overlays, or extra CPU/GPU load from fallback capture modes.
• The improvement is not guaranteed and varies widely by hardware, drivers, and Windows version. On a well-maintained PC with current drivers and a strong GPU, disabling FSO may produce no measurable improvement while introducing the inconveniences of slower Alt-Tab, focus quirks, or multi-monitor issues.

Decision Checklist

• Are you actually experiencing symptoms that fullscreen optimizations are known to cause, such as perceived input lag, inconsistent frame times, or the game acting like borderless windowed? Do not change the setting just because you saw it recommended in a forum; start with a clear problem to solve.
• Are you comfortable losing overlay, capture, and fast Alt-Tab convenience while you test? If you rely on Discord, streaming software, or the Xbox Game Bar, plan to spend a session or two confirming those tools still work the way you need them to.
• Have you established a baseline and a rollback plan? Record your current FPS, frame times, and subjective feel, then disable FSO for Valorant only. Play several matches across different maps and modes, and revert immediately if performance worsens, captures break, or the experience becomes less stable.

Alternatives to Consider

Before you disable fullscreen optimizations, try the lower-risk options that are more likely to help Valorant run smoothly. Make sure the game is set to the in-game fullscreen mode rather than windowed or borderless. Enable Windows Game Mode so the OS prioritizes game processes. Update your GPU drivers and use the manufacturer’s low-latency features, such as NVIDIA Reflex Low Latency set to “On” or “On + Boost,” or AMD Radeon Anti-Lag. Cap your frame rate to a stable value your system can sustain, which often produces steadier frame times than an uncapped, fluctuating FPS. Disable unnecessary overlays from Discord, Steam, GeForce Experience, and Xbox Game Bar. If you suspect frame-pacing issues, use tools like PresentMon or the in-game FPS graph to measure frame times rather than relying only on the FPS counter. Finally, keep Windows and Valorant updated, because Riot and Microsoft periodically change how the game interacts with the OS display stack.

Final Recommendation

The decision depends on what you value most. If you are a competitive Valorant player who wants every possible edge and you notice delayed response, inconsistent frame delivery, or borderless-like behavior while the game is set to fullscreen, try disabling fullscreen optimizations for the Valorant executable. Apply the change only to that game, test it across several sessions, and revert if you see no improvement or if overlays and capture stop working. If you primarily play casually, stream, record, use multiple monitors, or depend on overlays, leave fullscreen optimizations enabled and focus on driver updates, in-game low-latency settings, and stable frame-rate caps instead. Because system configurations vary, this guide is general information, not personalized technical support; for persistent display or performance issues, consult Riot Games Support, your hardware manufacturer, or a qualified PC technician.