I'm working through the setup of Esri's Cemetery Management Solution. I've set the data source for the layers in the ArcGIS Pro Project template to the created feature layers and tables in AGO. Running geoprocessing tools (Append, Calculate Field, Delete Identical, etc.) in ArcGIS Pro on the AGO layers is painfully slow. I'm currently populating values for ~18,000 features using Field Calculator and I'm 14% complete after 25 minutes. I had to let Delete Identical run over the weekend on 19,000-20,000 features.
How can I determine what's causing such abysmal performance and improve it?