I have an issue with XCode 4 which is responding very slowly to user interactions (e.g. editing code, scrolling areas). This particularly happens with larger scale projects with many controllers/view, and files.
I completely wiped the hard disk and re-installed Snow Leopard and XCode the other week, but steadily it ground to a frustrating response time again (over a number of days) disrupting workflow considerably.
I have also on occasion removed the project's "dereived data" via "Organiser > Projects" and this has had little effect.
I'm wondering if there is anything I can do to improve performance other than get a higher-speed machine in the first instance.
FYI, I'm running MacBook with Intel Core 2 Duo processors at 2GHz and 4GB of RAM.
In case we need to upgrade, I'd also like to know if people are experiencing this poor performance from XCode 4 on well speedy machines (which would make our hardware upgrade rather pointless as it's only Xcode that has any performance issue on the MacBook).
If anybody has any suggestions or recommendations, or could even let us know how improved hardware effects XCode's performance on larger project trees, then that would be extremely helpful, and also a valuable resource for other developers in a similar position.