Power BI Desktop and large data volume

Lorenz33 

I have queried, modeled, viz'd in PBI with SQL table currently at 63M+. 

It is possible that you don't need to bring the whole granualr table for analysis. In that case, you can easily do some server-side filtering /transformation/aggregation and bring the aggrgated data, which will dramatically cut down the size.

Should  you need the whole granualr table (probably not if you deep dive), you have premium workspace, you can take advantage of the dataflow ,incremental refresh and qery and store the result in dataflow and build report by querying dataflow. Make sure the SQL filtering and transformations are optimized else the dataflow will time out.