Decreased performance in the client on PBE?

I noticed a bit of this in patch 4.5 on the PBE, but 4.6 has been very buggy so far, which is fine since it is the PBE, but everytime I leave a game, my client takes a long time to load post-game stats, and goes unresponsive a lot. In game however, it's not so bad, but I have noticed a lower response time in champions when moving around especially. So is it just me, or is anyone else getting any of this?
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