Calculations - Causing Slowness - Looking for Alternative Approaches

Hi saturation 

It seems your problem is :

scrolling down through the table of data on the report visualization page takes time.

Which columns/measures do you add to report visuals? how many visuals on a report page?

To improve Power BI report performance, you could refer to this article.

• Use filters to limit report visuals to display only what’s needed
• Limit visuals on report pages
• Optimize your model
• and so on

Also, you could use Performance Analyzer to examine report element performance, then you can find the cause to slowness.