Hello,
i have 20 core onboard with Server 2019. When starting excel at the beginning i could see in options/advanced/Fomulas Number of calculation threads 20 - was ok. But after installing Remote Desktop Session Host the number goes to 2. To be sure the reason uninstalled it and number showed back 20. After reinstalling back to 2. Even with RDSH when code 
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gives correct number 20, but calculation in options still 2.
I will be grateful for any ideas to speed up it better way then going to options every time and set to manual 20 with every Workbook.

thanks
GregAm