Speed is only relevant in DRASTIC differences IMO.............why people get worked up over an extra 5 fps here and there is beyond me.
I will use myself as an example.......I have a short draw of 27". I had a Fred Bear TRX and it shot my hunting arrows right around 240 fps. When I bought a new bow I wanted to maximize my speed potential and Bowtech was the fastest bow I shot at my draw length. My Patriot now shoots a heavier hunting arrow at 275 fps.
Is either bow "better" for hunting??..............If I was shooting at an Elk I would say the Patriot but for deer they are both fully capable. The TRX has killed 3 deer in the last 3 years and the patriot took one this fall.
My brother hunts with the TRX now and his two kills were a smashed spine and a pass through so it packs enough power to take a deer no problem.
I do enjoy the flatter shooting Patriot. I can realistically use one pin out to 30 yards and my arrows hit on a nice frozen rope path..........slower bows you can see the arc in the arrow flight when you get out to 30 yards.
You definately don't NEED a super fast bow..........I would say that anywhere near 275 fps is more then enough and most likely overkill. I will be turning my Patriot down this year to about 60 lbs even (maybe 55) on draw weight which will make it rediculously easy to draw and still be plenty deadly with my Stingers...........I'm goin' Nuge style I guess [8D] After needing both hands to pull my arrow out of the ground this year I realized I may be over doing it a bit
I think something that needs to be considered is type of broadhead used as well. If you are shooting 2" mechanicals you better damn well have some power behind that arrow. On the flipside if you shoot Magnus heads like me or SteelForce heads you just need to be accurate and you should get a passthrough.
A poor choice in broadheads can make ANY setup fail.