Bandwidth For Multiple Users

Hello, we have a class of approximately 25 users who are simultaneously trying to access Stellarium using the Google Chrome extension. When only a handful of users try to access it, it seems to work well. But when the entire class tries to access at the same time, it is very sluggish to the point where it seems to lock up quite a bit. We have a Meraki Enterprise wireless system at our school. I suspect that all 25 users are hitting the same access point. Is this something that is to be expected? Is there a maximum number of users that should be simultaneously trying to access the system on our end? Thank you.