By arrow setup he means things like the arrows FOC, matching overall weight to the game your after, and picking a broadhead that will work for you. An example of a bad setup would be a lite arrow with the weight towards the rear shooting an expandable 3 blade for elk. Having the weight towards the back will cause erratic flight, and combining the light arrow with the big mechanical head, you'll get terrible penetration on an animal that needs an arrow to drive deep.
The chase for speed only creates tighter pin groups and arrows that may pack a lot of kinetic energy but not the momentum to drive the broadhead through the animal. A good analogy is a baseball vs a bowling ball. Takes more to stop a bowling ball going slow than a baseball going fast.
As to great shooting bows, the list is extensive these days. The big dogs, Hoyt, Mathews, Bowtech, and PSE are all producing some great bows. To those you can add Bear, Elite, Obsession, Prime, Xpedition, and others. It's a matter of taste as to what's the best for you. If speed is your motivating factor I'd look at the PSE lineup or the Xcentric from Xpedition. Just remember that when you chase speed you'll be losing brace height and getting stiffer draw cycles.