The slow pace is deliberate, and most seem to appreciate it.
Also, you're going to HAVE to justify why you think the fight choreography is "mediocre" as it has received nothing but praise from both critics and viewers alike, including myself. The show has some of the best action set pieces performed with minimal to no special effects on television. Is it perfect? Of course not. But it's not Hollywood, and it's far superior to anything else on television. I'd go as far to say it's better hand-to-hand combat than what we've seen in The Dark Knight Trilogy.
For example....
How is this choreographed poorly?