Really? Is there no way to improve the amount of seconds in the code or something?
Because that really really would suck if someone took the time to do this.
no actually it is a good thing, because after some time yu would not want to watch a hero kill every single goblin out of 30 or 40 (depending on how many regiments the enemy attacks with). fresh regiments against other fresh ones are really fast and look really epic. but single units vs. a lot is one after one combat, which would be annoying after some time, because u usually know exactly that your hero will win. and then it comes in handy that you will not have to watch the complete sequence of the boring battles (but you will be able to watch all the epic battles

just give WHFB mod a try or some of the EDU mods out there. and then see if it is something for you or not.