I used to like the nudging the TL's out of CL to cure the problem, but banned in our outfit now.
Always check that you have a good 5kt between VLs and the bugged Vapp after landing flap selected. Adjust Vapp in the MCDU if not. Even 2kts makes a significant difference to the lazy Airbus ATHR.
If it really gets out of hand take the automatics out.