I've just recompleted the testing 3 times
We have 2 tabs, 1 is a small amount of data, 1 is a decently heavy chart
With Client Rendering switch between the 2 tabs takes 1-2 seconds, that's back and forth constantly doing it 5 times back and forth.
With Server Rending switching to the light content tab is perceptively instant, vs the heavy tab which takes 1-3 seconds, Seems a smidge slower than the Client rendering,
But that's the same testing, back and forth it just keeps doing the same, 1-3 for the heavy, instant for the light tab.
Perhaps the client version delay could be the browser lagging as it marks the Div to be hidden, As I understand it, it doesn't reload when set to Client.
And that could be the chart being significant.
The chart has 5 series that have 500 datapoints each, Not crazy, But enough to make it stutter
I tried it in SyncFusion too in case their chart was faster, but it was far slower.
If we need to I can reduce the resolution of the datapoints, but I wanted to check for performance benefits first before slimming the data.