Many times I have the problem not to be able to appreciate the performance graph (the three) due to the fact that there is a particular segment that performed as out layer. Even when you hide that holding, the rest remains squeezed.
Having the possibility to spread the lines working on the scale of y axe (like investing.com graphs) or at least making it automatically adaptable to the range of the visible holdings (not the hidden ones) Is a great solution.
Not being able to appreciate them is really an euphemism…sometimes it is literally impossible to read them!
I hope you could find a solution!