SSAS model compatibility 1200 vs 1700

Hello, 

We have Targit connected to SSAS model. Is there documentation and guidance on how Targit will perform differently on SSAS Compatibility 1200 to 1700? 
We are moving to a new server which is compatible 1700. This server move is happening at the end of this week.

During testing, we are seeing significantly slower report performance with the 1700 model compared to 1200.

We would like to understand:

1. Does TARGIT handle SSAS Tabular compatibility levels 1200 and 1700 differently?

2. Are there any known performance issues or recommended configuration changes when connecting TARGIT to a 1700 model?

3. Does TARGIT have documentation or best practices for this migration?

We are also investigating whether TARGIT is submitting queries for report pages that are not currently visible, particularly when connected to the 1700 model.

Given our upcoming migration, any guidance or assistance in identifying the cause of the performance difference would be appreciated.

Thank you.

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