I'm going to need a bit of elaboration on what you mean by speed to comment.
The time it takes for combat to be resolved?
The time it takes for teching up and getting advanced units?
The time it takes for units to move around the map?
The time it takes for downtimes to end to start up another fight?
The time it takes for teching up and getting advanced units AND The time it takes for units to move around the map. The pace of the game it seems to FAST. Alot of things happen in the same time.