Those imperfections damage general aesthetics of design.
These problems appear everytime when the image was vectorized by software.
Most of all you need a good placements of the nodes when you need to cut a vinyl sticker or a laser cut piece.
Also, the service is necessary to handwriting artists as vectorization.
I propose to you to revise your vector files that have these lacks of perfection.
I will delete unnecessary nodes or add new ones in best places on paths.
I will orient nodes handles preferable horizontal and vertical.
I will align nodes on the same line where the alignment is disturbed.
I will recover the symmetry of the design.