The "more-less" adverb
To avoid the awkward construct of prefixing adverbs with "more", such as more quickly, or more easily, simply remove the "more" and instead use the phrase "easierly", or "quickerly". Does not apply in all cases, such as in more carefully ("carefullyier"? - nah). But, saves time and space and better than not using the adverbial form of a word at all.
The "more-less" adverb. E.g., "You'll get there quickerly if you take the back road.".