@prabhakar The output size is very low, being 90x106 pixels. Such low resolution will lead to aliasing artifacts at the borders of rotated or distorted attachments, and any smoothing will not get rid of the problem completely. Please export at higher resolution (Size
parameter in the export window) if you want resolution shown in the second screenshot.
If you dislike any smoothing to occur at all, you can change Smoothing
from 11
to 0
to get nearest-neighbour filtering for a pixel-art look. Nevertheless, you will receive quite prominent staircase aliasing artifacts then.