I agree, Cambium and Ubiquiti both have an edge here. They also both have a dedicated aiming page with a higher refresh rate than their main page as well.
Suggestion 1: Build a dedicated aiming page with a larger indicator and a higher refresh rate.
Suggestion 2: Include beeping on the aiming page with faster or louder beeps as the signal gets stronger.
Suggestion 3: Add a graph so the signal can be seen over time to get a sense of how the aiming process is going.