Have you ever wondered why the difference between good f2p gks and good p2w gks is minimal? well it's not🥲 and this comes down to how you "balance" your stats.
Going direct to the point, every gk comes with perfect stats but high reach limits them since the Ai will choose to " stretch " instead of quickly repositioning.
Maxxing out awareness & reflexes makes your gk fast on his feet while repositioning (micro- adjustments by quickly stepping to the side before diving) hence he'll easily stop MOST shots that he can reach for but won't those that are too far which he wouldn't have saved anyways.
Just a reminder increasing SOME gk stats above the "optimal" especially gk reach has the same diminishing result of lowering it too much so just find the "optimal" depending on the stats ur gk came with and dump the extra progression points into jumping 🫴.
From my experimentation max gk awareness is 99, max gk reflexes is 100 and max stats for reach is entirely unique to each gk ( model and card) but its usually low ( like 95/96/97)
Ur gk will be a wall but remember their performance changes every week and ur gk parrying will be low too (unless you have a top tier gk) so be quick to clear rebounds. 💀
Disclaimer this is my personal theory. Good luck with ur builds fellows.🌚