Currently I am calling refresh in the onVisible property for a screen but it is affecting performanc.e I am wondering if PowerApps support an "IsDirty" flag or something like that to know if the data source has changed prior to calling refresh in my app.
If not, I will most likely add an IsDirty flag when my app changes the data source as a work around. The problem with that is if another instance of my applicaiton is running for a different user, they won't know about the changes. I would much rather check an "IsDirty" flag on the data source to know if data has been modified.
I think I know it is not supported but I figured I'd ask jsut in case.