Netflow interface details not equal to traffic out

Hello,

Relatively new to the whole Solarwinds setup. Just installed NTA, and started monitoring all interfaces on a L3 switch we have.

Configured sFlow on it. When I check my Traffic in on each individual interface, for example on port 1/0/37 I always see an average traffic of about ~200-300Kbps:

However, when I click this interface to check the details, for my top endpoints I only receive a maximum of 20Kbps. I should expect this to be exactly the same to the 253kbps I saw before?

Does anyone have an idea why this doesn't match?

Thank you,

Kind regards,

Ron