Report and monitor resolution

I have a problem with my first application developed on a MacBook Air 11" using Xojo 2019r1.1
I build the application and I have to install it on two different Macs: a MacBook Pro and an iMac: I copied the folder produced by the build on both computers (is the procedure correct or do you have to do something different?).
This application must produce a report: it happens that the report produced on the MacBook Pro is perfect, while the one produced on the iMac has such a high font size that it becomes unreadable.
The problem occurs only with reports: with windows everything is smooth.
The Supports Hi-DPI property is set to ON.
iMac 27" 2019, Retina 5K, 5120x2880 resolution.
Am I doing something wrong? Am I omitting something?
I trust in your help!
Nedi