My first instinct was that you have little memory, and that your HDD powers down and needs to spin up when Dorx needs to reload the textures after going to the map screen... But if you have a SSD and have checked resource utilization, clearly that's not the case.
Have you tried running a performance monitor, plotting the processor utilization, page faults, % disk time and disk queue, and looking at the graph after you experience the period of unresponsiveness? Whenever I have a responsiveness problem, that's my first step. Practically every time, I get a pretty good idea where the problem lies. (Ok, I plot other things like network traffic, but this can't be the problem in your case)
No good deed goes unpunished...
Last edited by Tuidjy : 11-11-2013 at 05:20 PM.