This is not normal – depending on how you define forever. Normal screen updates should be around 1 second.
Factors that could be impacting this are network setups and computer setups. There is not a factor on the EZSrve that can impact this. If you share more on your setup, we can get you running at a faster clip.
There is a way to batch timers – you can go to the config section, and download the timers.xml file. There you can edit it by hand, and then re-upload the file. Restart the unit, and the timers you added will be on the module.
The format is pretty explanatory if you have a few in there already. Feel free to also ask for format information. In the wiki we are currently populating, the format will be detailed.