Data field pace

I am using the Forerunner 165 mainly for running and I use during running mainly the data field with:

Average pace, pace, hearth rate and distance.

The pace must show the actual pace while running, but only shows round rumbers liike 4:55, 5:00, 5:05 and so on and not 4:53, 4:48, etc.

The number is always a round number on 5 seconds.

Can i change this somewhere so I can see the actual pace?

The data fieds average pace and lap pace does show the pace like 4:54, 4:59 etc so these are not round numbers.