quality question

hi, basically on third person content grapichs is not clear. pubg grapichs are have clear vision. On pubg grapichs too far distance have clear look. but my project only have camera nearest objects are have clear vision. i want grapichs look like screen percantage 250 but fps is dropping. can i make good grapichs like screen pertange 250 without fps drop ?(like pubg grapichs?)

Its probably resoltion?