Can I get banned for adding a 100% Superglide CFG?

Generally it's not a good idea to automate movement, the general guideline is that one player input should never equate to more than one game input, and in general it's best to protect your account by staying away from that stuff.

For performance config, it's usually best to stick to the in-game options where available. General tweaks to improve performance should be fine, but if hypothetically there were a way to give an advantage (improving visibility by removing intentionally obscuring effects for example) this would not be allowed.