Hello @ngwj
Queue times can vary by time of day, day of week, the tool, and how many other people are running that same tool at the same time. The best strategy is to start jobs up then allow them to run. Avoid deleting and rerunning in hopes of jobs running faster, as that only puts your job back at the end of the queue, extending wait time.
If there are server issues, this is where to check: https://galaxyproject.statuspage.io/. Right now there are some issues with Support & Test Servers, but none with Galaxy Main https://usegalaxy.org.
FAQ: Datasets and how jobs execute
Related Q&A: https://help.galaxyproject.org/search?q=queue