Interface In and out graph difference

Hi Team,

We switching from PRTG to observium tool for our infra monitoring.

But as i have add the some devices we observe some difference our switch port IN and Out traffic utilisation on graph in Observium compare to prtg graph

like in prtg same switch and port showing in traffic 10M and in PRTG its show 4.8M, we have added almost 15 switches and the utilisation difference comes in all devices Graph

Kindly help to solve this issue

I am Attaching some snapshot of PRTG and Observium of traffic utilisation differences for your reference

Thanks & regards

Sawan Patel