Bonded Optik Internet 50 slow upload speeds

[wireless]

Hi,
I recently upgraded to Optik Internet 50 from Optik Internet 25, and it was provisioned via loop bonding.
For the download speeds I'm now getting around 53 - 56Mbps. But my upload speed is consistently around 3.5 to 3.8Mbps.
Before upgrading from 25Mbps, I was getting upload speeds of 5-6Mbps. It doesn't make sense to me that the download speed would be faster, but the upload speeds would drop by almost half.

Just wondering if the community has faced anything similar, or perhaps I should call tech support for this?
Thanks in advance!

Line 1 LevelsDownstreamUpstreamLine Rate:43597 Kbps2973 KbpsAttainable Line Rate:53669 Kbps5012 KbpsSNR:6.2 dB9.0 dBAttenuation:(DS1)15.4, (DS2)36.6 dB(US1)12.5, (US2)29.1 dBPower:18.6 dBm-5.6 dBm
Line 2 LevelsDownstreamUpstreamLine Rate:21039 Kbps789 KbpsAttainable Line Rate:25470 Kbps819 KbpsSNR:6.3 dB5.1 dBAttenuation:(DS1)17.2, (DS2)39.4 dB(US1)8.1, (US2)33.2 dBPower:18.6 dBm-2.5 dBm

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