Chevrolet Camaro 1967-2002 - Power Loss

I'm the original owner of my 2000 SS Camaro and would like some feedback on troubleshooting some power loss I'm experiencing with my daily driver. Currently have 116,000 miles and perform regularly scheduled maintenance routinely. Camaro has been somewhat hesitant on acceleration and does not have the gusto it once had on top end. It's all stock and I replaced plugs and wires, throttle position sensor, cleaned the throttle body and have no engines codes being thrown. Haven't done a compression check but is it worth taking to dealership to check if any flash updates are available from GM?

Ever consider your fuel pump? My 02 SS had a mild case of power loss, and replacing the fuel pump fixed that.

No I haven't replaced fuel pump and it's the original one. I'll do a pressure check on fuel system to see if any obvious fluctuations show up, thanks.