Large text on older versions of IOS

The design of my app doesn’t look as it should on older versions of IOS. For example (10.3.2).
It works perfectly on IOS 11 but on any older version the text is much larger.
The UX of the app in general is larger. Did someone face this before?

Please provide a Minimal, Complete, and Verifiable example that shows the problem, we can’t help otherwise.

Include details about the target devices you’re testing on (model, manufacturer, OS version), as well as Fuse version, OS of the computer you’re working on, specific build commands used to make the release versions of your apps.

And together with the MCVE, include specific instructions (steps to take) that we can follow to see the issue in person.