Your sync speeds are within the down and up "Clean" estimates. That line is where everything to do with the connection between the cabinet and your modem is good.
The "Impacted" line is where you may have a problem. Either a minor one from the cabinet or a possibly bigger one with your home wiring.
ADSL2+ has an absolute maximum upstream sync of 1.3Mbps.
ADSL2+ Annex M wouldn't help you, due to line length. You would find it worse than adsl2+ on the down
stream. The upstream estimate of 0.5Mbps for it suggests very poor upstream also on normal ADSL2+.