CPU and Memory Usage Spike Caused by 3.5.2

I left a comment under the theme release about this but as it's not appeared I can only assume it's not been received. So here goes again:

I installed 3.5.2 today and my blog's CPU usage jumped above 37% and its memory usage above 5% (I think it hit 11% at one point). I tried the theme on a few more servers and they all showed massive CPU and memory usage. Everything returned to normal once I reverted to version 3.5.1. My question is, has this issue been fixed in version 3.5.3?

Call me fussy but I don't want to be responsible for my clients having their server accounts suspended. Until I know the bug has been fixed I will advise my clients to stick with version 3.5.1; which is a shame because Atahualpa is a great alternative to Suffusion - one has square looks, the other has rounded looks.