Tactical shooters like Valorant (Riot Games) or CS:GO / CS2 require surgical precision. One bullet to the head is an instant elimination. This is where the concept of muscle memory comes in. Turning to an Aim Trainer has quickly become the norm among Esport professionals.
Muscle Memory
In an FPS, the brain interprets what you see on the screen (an enemy), and tells your hand or your arm the distance to cover with the mouse to place the crosshair on it. This is called making a Flick. Without practice, the movement is slow and often corrected over the last few centimeters.
Training isolates this step. By shooting at random targets for 5 or 10 concentrated minutes a day, you forge neural pathways so that this movement occurs in a purely unconscious and sudden manner.
The ruthless Time-To-Kill (TTK)
On games with a very low Time-To-Kill (TTK), it's the one who clicks on the head first who wins the duel. You can't afford to over-shoot or be a few milliseconds late. Coupled with Visual Reaction Time training, a basic Aim module is the bare minimum to stay competitive.
Finding your sensitivity (eDPI)
Most beginners start with a sensitivity that is far too high, playing with their wrist as a pivot. This is the worst thing for consistency. By doing tests on stationary or moving targets, you will notice the tremors in your movements. Consider lowering your DPIs (e.g., 800 DPI, very low in-game sensitivity) in order to start making large arm sweeps to turn and save the wrist only for micro-adjustments of clicks.
Routine above all!
Don't spend 2 hours a day on training. Pro players use it as a warm-up before entering Ranked. About 10 minutes of cold execution will give the best benefits along with good sleep. Test your ability now and exceed 60 targets per minute!