"I just don't feel that the bow has enought hum(power) after 20 yards."


It's ok to want speed, but the bow isn't firing magnums or even 30-06 rounds. And there are a number of older archers, some just experienced, who harvested deer with slower bows than you have.

Of course, faster bows are available. Speed is available at another $300 or $500, but that isn't always available. Some archers couldn't hunt, if they had to have the fastest. And many of them are good practiced shooters.