Your reaction time is the gap between a stimulus — an enemy peeking, a footstep, a flash — and your response. In FPS games, a small repeatable improvement can matter, but it is only one part of the duel. Detection, aim movement, positioning, network latency, and accuracy all sit on top of the baseline. If you need the full measurement map first, start at the reaction time test hub.

Measure yours right now

Free, ~30 seconds, with honest error bars.

Take the visual test

First: know your baseline

You can't improve what you don't measure. Run our visual reaction test and audio reaction test, then write down the visual median and the audio average over 10 cues. Do not anchor on your best run; a single best click is often luck. Compare yourself against your own controlled sessions before comparing against public ranges.

Test at the same time of day, on the same hardware, a few times a week. Day-to-day variance is large — only the trend over weeks tells you anything.

What actually works

1. Sleep — the first lever to control

Poor sleep can slow responses and widen spread. If you're serious about reflexes, control sleep before you buy gear because fatigue can hide or imitate small hardware changes.

2. Aim trainers and reactive drills

Tools like reactive flick drills train the decision + motor portion of your reaction. Simple-RT tests (like ours) measure the floor; aim trainers train the application of it under load.

3. Caffeine — timed carefully

Caffeine can improve alertness for some users, but it can also increase jitter, guessing, and sleep disruption. Test the timing against your own median and false-start rate instead of assuming it always helps.

4. Lower your system latency

This is the part most guides skip. Your measured in-game reaction is your brain + your hardware. A 60 Hz display presents a new frame about every 16.7 ms, while a 240 Hz display presents one about every 4.2 ms. That reduces visual quantization, but the final gain depends on the whole system and your own variance. We break down input criteria in Best Gaming Mouse for Reaction Time. For the non-shopping version, read input lag vs reaction time and monitor refresh rate and reaction time.

5. Warm up before you play

A short warm-up can stabilize attention and reduce early-session awkwardness. Measure it by running the same pre-session protocol for several days, not by trusting one strong warm-up run.

What doesn't work (much)

"Reaction time supplements." Beyond caffeine, the evidence is thin.
Grinding while exhausted. You train slow and reinforce bad timing.
Chasing your best score. Anticipation feels fast but it's gambling — our test catches it behaviorally: a fast run full of early clicks doesn't rank, no matter how quick the median looks.

Track it honestly

The reason we show a ± error bar on every result is that a "10 ms improvement" inside your measurement noise isn't real. Watch your median trend down over weeks, keep your false-positive rate low, and you'll know it's working.

Use the reaction time score interpretation guide to separate real improvement from a lucky run. For a broader training framework, read reaction time training drills, then compare sleep and reaction time with caffeine and reaction time.