It's a little hard to make out the screen, but from what I can tell it seems like you do have a similar problem. It looks like you're in Washington? I looked up your county (wow that's a lot to monitor!) and from the video it looks like all the frequencies being displayed are correct. But you can't see the ones where it skips through the phase 2 transmissions (about a minute into the video).
It seems that unlike mine which was fine if you only monitored the phase 2 system or held on one of its talkgroups, yours is slow even while parked on a talkgroup. Yours like mine makes that spitting noise at the beginning of phase 2 transmissions.
So a couple of things. Are you near enough any cell towers to experience interference? That affects response times and performance across the board on 700/800 mhz. Also in the settings menu, if C-Ch Output is set to ON or EXTEND I have noticed a slower response time on all systems.
Try the firmware upgrade, although I did it and still had a problem. I am receiving a new unit today hopefully and will let you know when it arrives.