2mm wide wall printing issues

Hello there,

I’m struggling to print a 2mm thickness long curved wall. As you can see on picture there’s is a kind of deformation certainly due to the thickness.

The part is 200mm long and around 55mm width. (STL attached)
Tried with Z-ABS & Z-HIPS on M200 & M300.

I can neither print it vertically due to excess of vibration on the last 20% of the part.

Does anyone knows on which parameters do I need to adjust to solve this annoying issue?

Thanks in advance for help.
Lamelle abat jour2mm.stl (110.5 KB)