BuildRanked · Guides
Why is my FPS low?
Quick answer
Low FPS almost always means your PC can’t complete the work per frame in time: the game is asking for more pixels/effects than your hardware can deliver at the chosen settings—or it’s delivering work in bursts while thermals or power limits knock clocks down right when you need them.
On your machine, the limiting factor might be GPU fill rate, CPU frame time, RAM capacity, shader compilation hitches—or heat cutting performance on one side by a little, or a lot. Without checking, the same symptom can hide different root causes.
Interactive
See whether CPU or GPU heat is costing you more (simple model)
Pick the parts closest to yours, plug in temperatures you actually see under load, and get a directional read—then validate in-game.
Expanded explanation
What “low FPS” really means in practice
FPS is an outcome, not a single knob. Background tasks, VSYNC caps, resolution scaling, DLSS/FSR settings, and driver versions can change the headline number even when hardware is unchanged. That’s why the best workflow is: confirm what you’re GPU-bound vs CPU-bound on *in your title*, then decide if cooling or upgrades address the real limiter.
Thermal throttling is sneaky because it shows up as instability: frame times spike, clocks wobble, and averages look “okay” while play feels uneven.
Do this before buying parts
Actionable checks
- Pick a real scene: benchmark the area you actually play—menus and spawn points lie.
- Watch frame time, not only FPS: spikes mean stutter even at “high average FPS.”
- Heat and power: if clocks drop under long sessions, cooling and case airflow can be the hidden graphics setting.
- Upgrade path sanity: upgrading the wrong component won’t move FPS if you’re bound elsewhere.
Internal links
Tools & deeper reading
Still stuttering?
Run the analyzer on the parts closest to yours, then re-check in-game while watching clock behavior under load.