Well, to make it sound fast: First, use less sentences. Each full stop usually implies that the previous idea or action had come to a close, so instead of "Growlithe thought about his attacks. Growlithe punched a hole. Growlithe sat back and smirked at Riolu", you could have "Growlithe thought about his orders, and decided that he would punch a hole using Rock Smash. He did so, creating a rift between himself and that bothersome biped, then leaned back and stuck out his tongue at Riolu." Even though the first is easier to read, the second is much faster. Well, for me, anyway.
Secondly, use less adjectives. When the Pokémon are just standing there, go on and fill it with description, but when they're in the midst of a fast-paced battle, you may want to trim down on the description a bit. I have the problem of needing more description, though :P
Finally, read your reffing. If it seems that a particular area is taking too long to read compared to the time of its actual execution, use less dense words. Cut down on the description. Splice sentences. Use easier words.
Secondly, use less adjectives. When the Pokémon are just standing there, go on and fill it with description, but when they're in the midst of a fast-paced battle, you may want to trim down on the description a bit. I have the problem of needing more description, though :P
Finally, read your reffing. If it seems that a particular area is taking too long to read compared to the time of its actual execution, use less dense words. Cut down on the description. Splice sentences. Use easier words.