You are correct that Ross Perot was the one who siphoned the votes and that was the main game changer in the elections of 1992 & 1996. Clinton was the only President to not one, but two elections without ever getting a majority of votes (not even close to 50%).
But I can say that the charge of the Bush affair from the Clinton camp helped to mitigate the moral charges against Clinton in the mind of many left leaning voters. It had a much smaller, but real impact on the election.
pardon my gaff. Should read: “Clinton was the only President to win, not one, but two elections without ever getting a majority of votes (not even close to 50%).”