I'm not sure if this is an issue with my account specifically, but 7.5 is basically unusable for me, both on a Hackintosh (I know it's unsupported) and a 2011 Macbook Air (it's old, but the hanging pattern is almost identical). Hanging usually occurs when switching between login items or categories in the Watchtower section.
I deleted all AgileBits files from my Hackintosh and installed 7.4.3, everything is working like a dream now.
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