Hi @MaximeDemers
Thank you for the additional information. It is correct that the number of plans & projects in the urban model has an impact on the time needed to load the overview. We are aware of this and are working on improvements.
Already with the upcoming release (scheduled for end of February 2023) loading plans & projects in the overview will be faster. In addition, we are currently investigating strategies to improve this further, especially when just switching between plans or projects. Also, as I mentioned in my first comment, we are working on general improvements how projects are stored/used which should make the urban model faster as well.
Until those improvements are in place, you could try the approach outlined by @MaxNilsson. As an additional approach (e.g. for presentations) you could try having the overview already pre-loaded in another browser tab. We are aware that this is not optimal - as I said, we are working on it.
I hope this information helps you, please get back to me in case you have questions.
Till