Quick Answer

The fix for USB DAC low FPS is almost always software: power profile, driver version, shader cache, and Resizable BAR. Done in order, these restore a consistent 144 fps at 1440p without touching the wallet. Only a workload that still sits under 110 fps after a clean reset points to a genuine upgrade.

Pin Down When The Low Fps Appears

Lock the test conditions first: same resolution, same preset, same scene. On the USB DAC a clean 144 fps at 1440p is your target, and any dip toward 110 fps is the thing you are chasing. Without a fixed scene you cannot tell whether a tweak actually helped or you just loaded a lighter area.

In-Game Settings That Actually Matter

Drop the two heaviest settings first: ray tracing and volumetric/shadow quality, then add a frame cap a few frames under your refresh. Turn on upscaling (DLSS or FSR) at Quality to claw back headroom at 1440p. These changes recover most of the gap between 110 fps and 144 fps without making the picture look worse.

Thermals And Clock Behaviour

Watch GPU and CPU temperatures during your test loop; sustained throttling above the mid-80s C will cap clocks and produce low FPS. A clean dust filter, a fresh fan curve, and case airflow that pulls cool Centurion air through the front usually settle it. If a 9-series chip still throttles after that, a stronger cooler is the targeted fix, not a whole new platform.

FAQ

Does upgrading storage help low FPS at 1440p?

It helps the traversal and texture-load kind of stutter, where the game streams data mid-play. Moving the title to a Gen 5 NVMe SSD smooths those spikes, though it will not raise a GPU-limited average on its own.

Should I cap my frame rate to stop low FPS?

Yes, a cap a few frames below your monitor's refresh keeps frame-times even and stops the GPU from spiking. Pair it with G-Sync or FreeSync for the smoothest result at 1440p.

Why does low FPS only appear in some games?

That usually means a per-game setting or shader-cache issue rather than a hardware fault. Clear the shader cache, reset that title's graphics options, and the low FPS normally disappears while other games stay smooth.

TIP

Pro Tip

Work the checks top to bottom, log your 1440p numbers, then come to Evetech for the single part your results prove you need.