more slowly
More quickly would be the comparative form. Any adverb that ends with an "-ly" would take more for comparative and most for the superlative forms.
There is no comparative of get.
comparative
comparative
"Litter" is a noun and a verb and, as such, does not have a comparative degree.
the comparative form of SLOW is SLOWER. And superlative form is SLOWEST.
comparative= slowerSuperlative=slowest
slower
The comparative form of noisy is Noisier
comparative - longer superlative - longest
slower, slowest
slower, slowest
slower, slowest
slower, slowest
"Slowly" is the adverbial form of the adjective slow. Comparative and superlative forms are slower and slowest.
The superlative of slow is slowest. The comparative is slower.
More quickly would be the comparative form. Any adverb that ends with an "-ly" would take more for comparative and most for the superlative forms.