Question UI Elements Draw Distance?

Hello everybody.

In my game, I've recently noticed an issue relating to the viewing of smaller UI elements based on the screen size of the device (mobile screens). There are certain elements that use small lines, that become invisible when viewed on the full size screen of the device. I've looked around various threads to try understand what is causing this, but can't seem to figure it out, even through changing all of the canvas mode settings. Please find attached some pictures showing the problem. The first picture shows in the scene view what the ui should look like, then the second image is from the game view, when running at a default scale of everything. If I increase the viewing scale, suddenly it all becomes clearer. There is also an image of my canvas settings. How can I adjust some settings to increase the viewing distance relative to the resolution of my device?