After hours of frustration, trial and error. I found the reason and solution!

Reason: Basemap layer doesn't have same projection as other layer(s) in one Data Frame! Transformation on the fly takes time.

Solution: Use only one projection throughout one Data Frame for all layers!

I found the reason and solution:

• Reason: Basemap layer doesn't have same projection as other layer(s) in one Data Frame! Transformation on the fly takes time.
• Solution: Use only one projection throughout one Data Frame for all layers!

After hours of frustration, trial and error. I found the reason and solution!

Reason: Basemap layer doesn't have same project with other layer in one Data Frame! Transformation on the fly takes time. Solution: Use only one projection throughout one Data Frame for all layers!

After hours of frustration, trial and error. I found the reason and solution!

Reason: Basemap layer doesn't have same projection as other layer(s) in one Data Frame! Transformation on the fly takes time.

Solution: Use only one projection throughout one Data Frame for all layers!