I can't verify your numbers. As far as I can tell, loading a ~900,000 word document with no other differences than including or excluding </p> has about the same load time, though there's too much variance from load to load for me to really give definitive numbers.
Are you sure you converted it properly? I'd expect those kinds of numbers if your elements were very deeply nested by mistake (e.g. omitting tags where it's not valid to do so), but I don't see why leaving out </p> should be so slow.
Are you sure you converted it properly? I'd expect those kinds of numbers if your elements were very deeply nested by mistake (e.g. omitting tags where it's not valid to do so), but I don't see why leaving out </p> should be so slow.
Try these two pages:
https://niconii.github.io/lorem-unclosed.html
https://niconii.github.io/lorem-closed.html