'largely more' is not correct and usable in written English.
Instead, you could use the phrase 'much more' in written English. For example, "The problem was much more complex than any of us expected."
The beauty looks however, were largely more low key.
Surprisingly, the written media have been largely more supportive than TV or radio.
Main courses tend to hold less interest than the appetizers, perhaps because they are largely more of the same.
The arrival of both was largely more intriguing than the 135th game in a season that was long ago lost for the Mets.
Despite this, Extreme Happiness - if not exactly producing that feeling - is largely more enjoyable than it might sound, even as it ultimately reaches deeply disquieting conclusions.
But in practice, Dr. Seligman says, people's answers to that question are largely — more than 70 percent — determined by how they're feeling at the moment of the survey, not how they judge their lives over all.
Clearly, the memory cell wear-out dynamics makes the maximally achievable error correction capability of LDPC codes largely more-than-enough over the entire lifetime of memory, especially at its early lifetime when P/E cycling number is relatively small.
The shift largely reflects more favorable views among independents, who now are more likely to view the law favorably (50%) than unfavorably (39%).
This year, Hollywood seems to have largely shunned more seasoned actors, along with older moviegoers.
Then, as now, the real concerns of American-Indian politicians have largely been more pragmatic.
So museum officials chose to focus largely on more recent gifts.
