Does it make sense to serve public, meteor js-bundle and css through nginx?

we have a project that has a lot of access and it runs currently with nginx-passenger with multiple meteor-processes, but its not so smooth on high loads and we want to optimize it.

one optimization is to server the bundle js, the css and everything under public through nginx. We have only some fonts and a few images under the public folder, so i am not sure if this makes a big difference and its worth the effort, but it might help a bit.

has anyone got a recommended setup for nginx to serve these files and is this still a reasonable thing to do?