Power BI has some really important performance tips that we all need to know. Essentially we need to be aware of what is on a page and how it interacts with the other page elements, the more you think about this and the more aware you become the better you will be at building efficient reports. While I think it can be acceptable to have a slower loading page if it is a key visual you can always make things better and you should always be trying to think about how you can improve performance on any report.
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