I only have to wait a few seconds (10 at the most, but most of the time only 5) to get a new turn. Maybe there is something with your configuration, other programs running, etc. I know that 0.77 is the most stable FE beta yet, and later game seems more manageable too (in terms of not crashing as much, and perhaps less cases of corrupted saves - at least not yet in my first major 0.77 game, as at Season 213).
