It turns out there is apparently a software issue between TicWatch Pro and Watchmaker. I bought a 2nd TicWatch Pro because I like the watch. It has the same problem. My Moto 360 version2 never has this issue even though all apps are the same on all devices. Except for the fitness apps that are part of the watch manufacturer supplied apps. Don't dismiss this because there are no issues on Moto, this seems the logical place to start.
I suspect a memory leak issue in Watchmaker, but since I don't have the issue on Moto, it might be a Tic issue. Please work with Watchmaker to fix this.
I run a very busy face, but others probably run more complex faces. Anyway, after anywhere from 2 hours to 10 hours the watch becomes almost unresponsive. It takes 30 seconds or longer for the notifications screen to scroll up and it pauses several times on the way up. Pressing the top button can take as long or longer to pull up the menu. The seconds on the watch freeze also. This does not happen if a run one of the stock faces only when I run my Watchmaker face. Watchmaker has 5 fixes you can run for certain watches and I have tried each of them with no success. Sometimes the watch will eventually switch to ambient mode and then it will work again. Other times, I have to long press the top button and reboot the watch. This problem started about 5 weeks ago and is consistent on both TicWatch Pro's. The only mitigation I have found is to switch to ambient mode every hour and switch back to my watchface. This seems to reload the watchface and start the clock over.
I love the watches and am addicted to my watchface and all the info it provides. Please work with TicWatch to fix this very annoying bug.