If you ever tried listing a directory with a lot (10,000+) of files in it, I’m sure you know how annoyingly slow ‘ls’ can be. Turns out there is a simple way to make it better. Have a look at the “When setting an environment variable gives you a 40x speedup” blog post.
Or just do the following:
export LS_COLORS='ex=00:su=00:sg=00:ca=00:'
This will disable colors on the executable files, setuid/setgid bits, and capabilities.