The Ban Phase in SR Lags

So this happened multiple times.. The new client requires way too much on the visual graphics or something.. but going into a summoner rift draft pick banning phase: The ban lags a lot.. it took me 15 secs to process me clicking a champ to ban and then another who knows how much longer to click the ban and it will punish me for afking when it doesn't even process it. The legacy client doesn't have this lag. The lag occurs when the accept a match pops up, when picking a champ, etc. I feel that the fix is either allow more time so that it incorporate the first inputs in time or change it to be less taxing.