What the aim trainer measures
Every target requires a full acquire-and-click cycle: spot the new position, move the cursor (or your finger) there, and land the click inside the circle. That combination — visual search, pointer control, and click timing — is exactly the loop shooter games run thousands of times per match, which is why aim training transfers better to gameplay than raw reaction drills.
Your score is the average milliseconds per target across fifteen targets. Around 500 ms per target is typical with a mouse; sub-400 ms is quick, and sub-300 ms is the territory of players who train aim deliberately. Accuracy is reported alongside speed because racing at 60% accuracy is a worse habit than hitting clean at a slightly slower pace.
How to improve your aim
The biggest single factor is mouse sensitivity: most untrained players run far too high a sensitivity to make small corrections. Lower it until a comfortable wrist sweep covers about half the screen, then let your arm handle large moves and your wrist the fine adjustment.
Then it is volume and consistency: short daily sessions beat marathon ones, and warming up before you record a serious attempt reliably shaves 20–50 ms per target. Re-run the test on the same device and sensitivity to make your history meaningful.