Pressing the Escape button does work most of the time
You will still get the odd CTD. It appears to me the problem is not the rebel turn but a screen that fails to load properly at the beginning of the turn that causes the problem. Be that as it may you can speed up the reload process in a couple of ways.
1. If a faction makes diplomatic advances after your turn for trade rights or some such then immediately lift your finger off the "esc." key and tap the key again and save the game. Do this after every time a faction offer does something. It will save the 5 minutes of watching non-combatants walk through your territory.
2. Open the game options page and toggle the switch "Do Not Follow AI Moves" Then you aren't bothered by endless Merchants, Diplomats, Jihads and Crusades that are simply moving through your territory. This really speeds up the computer moves -- The exception to this might be if you have a Crusade or Jihad called against your faction.