Sorting the columns of a report with ~5500 files/table rows takes ~40 seconds for the first sort, then ~6seconds for subsequent ones.
First sort (by uncovered lines, descending):

Subsequent Sort (uncovered lines, asc):

Overhead from jQuery is the likely culprit. Google shows there are many other drop-in options that may or may not work just as well. I've no suggestions. I'll try to test a few out and see about a PR
Sorting the columns of a report with ~5500 files/table rows takes ~40 seconds for the first sort, then ~6seconds for subsequent ones.
First sort (by uncovered lines, descending):

Subsequent Sort (uncovered lines, asc):

Overhead from jQuery is the likely culprit. Google shows there are many other drop-in options that may or may not work just as well. I've no suggestions. I'll try to test a few out and see about a PR