Game starts immediately instead of giving the players 10 seconds to see what picks the opponents have. This would've allow the players to adjust runes and masteries accordingly, which was possible in Ascension.
[If I see Garen or Zed for example, I would take exhaust over flash since there's no escape from them or even Cleanse against Malzaharr]
Game sometimes skip the last few seconds when the timer is counting down to 0.
It's a major issue.