I'm afraid I'm no expert on project management tools!
On what users experience as effectively "instantaneous", that's from experience on UX engineering and industry standards - https://www.nngroup.com/articles/response-times-3-important-...
On the other noted times, they're just a general range of what can be expected from a reasonably well-built tool of this nature. Obviously much simpler systems should be drastically faster, but project management tools do tend to be processing quite a bit of data and so do involve _some_ amount of inherent "weight", but that isn't an excuse for very poor perf.
That said, I imagine if your PMs do some research and go ahead and try using some of the common project management tools, you should get a good idea. ;) Keep in mind speeds to Australia (assuming Atlassian is operated mostly there?) will likely show them in a much worse light than typical perf experienced in the US/UK/EU areas.
The time to first load is derived from the fact that you're running essentially the equivalent of many "transition" type interactions, but they should be run almost entirely in parallel, so roughly 2x between "transition" and "new load" is a reasonable allowance.
On what users experience as effectively "instantaneous", that's from experience on UX engineering and industry standards - https://www.nngroup.com/articles/response-times-3-important-...
On the other noted times, they're just a general range of what can be expected from a reasonably well-built tool of this nature. Obviously much simpler systems should be drastically faster, but project management tools do tend to be processing quite a bit of data and so do involve _some_ amount of inherent "weight", but that isn't an excuse for very poor perf.
That said, I imagine if your PMs do some research and go ahead and try using some of the common project management tools, you should get a good idea. ;) Keep in mind speeds to Australia (assuming Atlassian is operated mostly there?) will likely show them in a much worse light than typical perf experienced in the US/UK/EU areas.
The time to first load is derived from the fact that you're running essentially the equivalent of many "transition" type interactions, but they should be run almost entirely in parallel, so roughly 2x between "transition" and "new load" is a reasonable allowance.