Chris Webb looks at some extreme scenarios:
You may have read the title of this post and guessed that I’m going to talk about reducing the number of visuals that display data from your dataset as a way of improving performance, but that’s not the case. In this blog post I want to show how visuals that do not display any data from your dataset can have a significant impact on report performance. Before we carry on I suggest you read the series of posts I wrote late last year on measuring the performance of reports in the browser using Chrome/Edge DevTools (part 1 is here, part 2 is here, part 3 is here) because I’ll be using techniques described in these posts in my testing.
Click through for an interesting demo.