What can I do to speed up the process of launching workspaces?
Workspace startup has a few different phases (incl. Assigning, Mounting, Pulling, Preparing, and Running, see image below). Depending on which phase is slow there are different solutions. For example, if Pulling is taking a long time, this means the step that pulls the Docker image (for the compute environment) is taking a while, probably due to a new or large image. You could either use a smaller image (e.g. Domino Minimal Distribution instead of Domino Analytics Distribution) or talk to you admins about caching images in the AMI.
More about Workspace startup stages here: https://docs.dominodatalab.com/en/4.1/release_notes/4-1.html
Customer Success Engineer @ Domino