I also had this update done on my Compass.
The CVT reactions are now very much different than before and I like it much better.
However, from a dead stop, I agree with you, it is still very sluggish, only improved by a little something almost indistinct from before.
I'm pretty sure this can be fixed by a software update.
This engine is quite powerful you know. I'm pretty sure that's because the "gear ratio" (even though there's no gear) they programmed for the CVT when you accelerate from a dead start is tuned for comfort, not performance.
It really should be set to use the full torque of the engine if you step on the gas all the way down. We should be able, I believe, with this kind of transmission to have a very quick acceleration, pretty much the same feeling as an acceleration in first gear with a manual transmission because there's an infinite possibility of "gear ratios" because of the variability of the transmission.
It is known, however, that CVT transmissions aren't very good at giving torque but they are still improving on this. I read that somewhere regarding CVT and performance cars, can't remember where though.
It just seems to be "tuned" to have a smooth ride instead of a performance one, too bad.