How to speed up Endless Legend battle animations after a game start?
Solution 1:
Let me answer this question by quoting this answer from the game's Steam Community board.
If you forgot to set the combat speed while creating a new game, you can change it in your save file. Locate the zip for the save file (usually in your User directory), open the zip, edit GameSaveDescriptor.xml by finding the line 1 and set the number to 3 instead of the the default of 1. Make sure the zip is updated with your edited file.