I've just installed AppCode on an older Mac Mini (mid 2011 2.7 GHz Intel Core i7, 8 GB RAM, AMD Radeon HD 6630M 256 MB) and performance is terrible - even when just cursoring around in the editor response time is almost a second per keypress. Everything else is dire too. No indexing tasks running or other high cpu usage. Not short on RAM according to the memory monitor.
Other apps also suffer while AppCode is visible. If I hide (not quit) AppCode, everything is fast again.
So, I conclude some sort of graphics performance issue. Is there any way to fix this? Some VM option perhaps?