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Hello,
I have one question, For performance, what should I choose to make the report the fastest?
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Preview data helps to present you with a quick preview of source data, and of transformation results for each step of your queries. It's stored separately on-disk and not inside the Power BI Desktop file. You'll achieve a faster refresh by setting the Power BI Desktop file to update the preview cache in the background.
Paul Zheng _ Community Support Team
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https://www.thebiccountant.com/speedperformance-aspects/
I turn this off in general. It slows down many queries considerably. As you see, I’m also disabling almost everything else, as most if it can also have a negative impact on performance.
It's bette I choose this one :
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