I would highly not recommend increasing the results to over 100, even less. First of all the ajax response would get so big, that the browser could not handle it, and the images displayed would also take extreme bandwidth, probably freezing the browser.
The isotope script would probably fail as well, I don't think it was ever tested over 100 items by it's author.
The pagination would break a line, it's not yet prepared for high amounts of pages unfortunately.Best,
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