champ select glitches if u dont preselect champ

so if im the only one that doesn't preselect their champ champ select gets mega laggy and i can no longer input anything so when its my turn i cant pick bans or champs cuz the menu doesn't show it just freezes/lags on champ picture. it only happens when im the only 1 who doesn't preselect if 2 or more do its fine. i get the idea of preselecting so people know what u want to play for bans and team comp. but for the most part its kinda silly. since if your like me i dont like to decide till i see what they pick. its consistently every time im the only 1 who doesn't so its not random