incorrect bw calculation during initial startup

when I start nyx on a relay it takes about 5 seconds until the UI appears.

The very first value for download and upload bandwidth is always extremely and unreasonably high (3GB/s) and reaches the actual value one second after that.

The problem of this is the impact on the avg. bw value shown, which is distorted due to this incorrect first value.

connected to tor via a controlsocket (not controlport) os: FreeBSD 11.2 nyx version: 2.0.4 Python 3.6.6

Trac:
Username: a_p

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