Detection of balls about 6-10ft Away not detecting

I used Yolo5-11 and while performing great detecting balls lets say 5-10ft away in 1920 resolution and even in 640 it really is taking toll on my app performance.

When I use Create ML it outputs all in 415x which is probably the reason why it does not detect objects from far.

What can I do to preserve some energy ?

My model is used with about 1K pictures 200 each test and validate, and from close up and far.

Detection of balls about 6-10ft Away not detecting
 
 
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