Client and ingame Stutters

After downloading the new patch (5.3), I went into Summoner's Rift Blind Pick. When the client found a game everything greyed out like it should. However, the "Match Found - Accept or Decline" message appeared 3/4's done because it had frozen. After accepting and going into champ select the game froze immediately on the Champion Select screen. Before the "____ has joined the lobby" chat messages. It then unfroze at least 10s later. Once I got into a game however everything was fine for the first 5s. But when my character exited the fountain massive frame stutters happened. They would freeze the game for 2-7s each time and happened every ~2.5s. This was very annoying as pressing Esc took 15s to load (The game froze in the background). After disconnecting and reconnecting the game didn't stutter nearly as much, but the problem persisted still. Freezing for 2-7s still.

Some facts I noticed:

1. My Task Manager was still the same as before patch 5.3 No differences whatsoever so it wasn't my computer that had the problem and League of Legends wasn't taxing anymore memory, ram, etc then it normally did.
2. I had no other things open.
3. Disconnecting did partially fix the problem, however stuttering still occurred.
4. Freezing in Client.
5. Cause seems to be from patch 5.3 as I never had these problems in 5.2 or any earlier patch.
6. Game froze when the "Defeat" message appeared.