Only time for a quick glance. Two comments.
First you now have interleaving turned on. That typically costs around 10Mbps of Bearer 0 Downstream. But you've lost more than that.
Second, I'm surprised you have lost the complete top band of downstream in the medley phase of pbParams. That's the line showing what you are using as opposed to the discovery phase which just gives what is possibly available.
There are several others who know more, but it might be an idea to see what you get when going right back to basics. Which would be removing the faceplate and
the VDSL filter plate and connecting using a dangly filter into the test socket.
If that's still bad then we need to start thinking of possible causes. If it's good, we have established something is dodgy on your premises.
I assume the whole lot isn't behind a TV or on top of/very close to something else electrical.