Do not use the colloquialism lots of (nor its cousin a lot of) in Academic English. Say "much" with non-count nouns and "many" with count nouns, or be more numerically precise. Neither many nor much is more or less accurate than a lot of or lots of; but they are more acceptable in academic English, which may seem strange. But it is so.
It is also strange that a great deal of is more acceptable than lots of. But that also is true.