Making statements about not needing higher performance bows to do the job is just like saying we don't need anything more than B-50 on our bows
Get down to it, polyester bowstring will do the job just fine. I'm constantly tinkering with strings looking for the best durability, stability, and consistency. I'd happily use HMPE materials even if they were slower than polyester for these reasons. The speed difference isn't huge either way.
Bear, Pearson, Allen, etc. built wheel bows for the same reason they are built today. It was/is a business. Speed doesn't kill, but it certainly sells. Taking as much of the work out of it as you can sells. That's why all the bell's and whistles are so popular.
There are plenty of areas to work on improving other than speed...things that really count...but they often get ignored.
Because I don't shoot "traditional" I shoot recurves and don't like the draw cycle in compounds.
Never understood why "traditional" is a dirty word when it comes to archery. Either way, if speed/performance/whatever you want to call it is your #1 priority, then you won't be shooting a recurve--or any other traditional bow.
A car competing in nascar cant compete in formula 1.
But we don't have separate seasons for wheels and sticks, so when it comes to hunting it is like souping up a lawnmower to compete in NASCAR. You can have the fastest lawnmower around, you'll still get smoked on the track.
Again, I have nothing against a fast bow, it's just not the "be-all-end-all" for a hunter or competitor. I know guys that kill plenty of game with selfbows--lots more than a lot of others I know shooting the "fastest". Same goes for competeing. I've shot in multiple classes at some tournaments and my selfbow score (slowest) wound up being higher than my recurve score (fastest). Go figure.
The OP ask "how fast is fast", and 180 fps is knocked back like your bow is sub-standard if it won't shoot any faster than that. That's plain hogwash.
As far as being able to drop down in weight...you can quickly and cleanly kill a deer pulling 25#--I know a young lady who have proven this several times, and it wasn't with the fastest bow on the market. Didn't even have a "skinny" string.
Shoot what you like, but don't try to make the beginners that don't know any better feel like their equipment is crap because it's not burning the fletchings off every third shot. As long as they do their part, even a "slow" bow will work just fine.
A deer doesn't care how fast the arrow is flying when it goes through his lungs...or over his back.