Saw your thread yesterday and I really wanted to reply but the thread go closed lol.
First off, there is no way that Toyota Sequoia should be keeping up with your Camaro. That thing runs a 16+ second quarter mile on a good day whereas your car is capable of at least a mid 14. Average people don't realize that depending on how far you run, just a few car lengths is a KILLING...when they may be thinking..."wow just a few car lengths...thats keeping up". Its not.
I had a truck with a V8 with almost exact same HP/TQ output as the Sequoia but my truck was likely lighter, and I know it wouldn't keep up with my Camaro.
Lots of factors can go into making your car feel sluggish. 1)...its hot out. These cars do not run nearly as quick in hot temps. 2) If your car was heat soaked when you ran it (meaning you had driven it previously before it had enough time to fully cool off) that would have made it run much slower. 3) Sounds like you may not have driven it to its fully potential
Accept under hot conditions like it currently is, I don't really feel like my auto is a dog....of course I do have several mods on my car. My car feels pretty strong as it sits now. Also, in sport mode and under WOT my car will not shift until redline..so around 6,800 rpm. Your car should be doing the same.
Last thing...if you want to play around in your car a bit and learn which rpms are the most fun (in each particular gear) put it in manual mode and drive around that way. You will notice that stabbing the gas in 1st gear gives you that "head kick" that your looking for, and doing the same in 2nd gear when your rpms are around 4,000 or more will do the same. Even 3rd gear on the highway doing around 70 mph does it a little, but not as much as the two lower gears. I love playing around in manual mode, although if I'm going a timed 0 - 60 run I do it in sport mode because that is generally going to be the faster/easier way to do it.
Now get out there and have fun!