Build a baseline before optimizing
The best competitive settings are the ones that make important information easy to see and repeatable actions easy to control. Begin with a stable frame rate, clear visual hierarchy, comfortable input, readable audio cues and a field of view or camera that supports your role. Record the baseline before changing it.
For a Battle Royale such as PUBG: Battlegrounds, prioritize stable frame pacing, clear enemy visibility, mouse control, keybind reach and readable audio. A setting is useful only when it supports the decisions the game asks you to make; a copied number without that context is just a different default.
Test one change with a real question
Change one variable, keep the rest of the setup stable, and test it across several normal sessions. Ask a specific question: can you acquire targets without overcorrecting, read the important effect sooner, keep camera control during pressure, or act without fighting your keybinds?
Do not evaluate a new setting only by your best highlight. Track common actions and mistakes. If a lower visual option improves performance but hides information you need, it is not an automatic upgrade. If a sensitivity feels fast in warm-up but breaks precise control in matches, return to the saved baseline.
Keep settings connected to practice
Practice recoil and target transitions at the ranges that appear in real matches, not only close-range sprays. Build repeatable drop and loot routes, including vehicle contingencies. In replay review, mark when your team first had enough information to rotate and when it actually moved. For fights, evaluate whether all players had a sightline and whether knocks were converted without exposing the squad to a third party.
Lock the setup long enough to learn it. Use the sensitivity converter for supported mouse-aim games, the crosshair studio for a readable starting point, and your own replay review for the final decision. Hardware, role, posture and preference mean there is no single perfect configuration for every player.