[fluxus] What is the best X resolution?

[glauber alex dias prado]

Hi im working with fluxus here and i noticed that it was a bit slow on
renders of thing other than particles :).
Then i thought it could be a good idea to know what is the best
resolution to have a good performance and keep the render quality, my
default is 1920x1280 and when im working with blender(also uses opengl)
it runs ok, now ive used wmxres to change it while running X and it is
at 1024x768, its cool if you change it like this cause you can pan
around the older big screen and have some stuff on the side (like im
always looking at some source code/docs to understand what im doing).
i dunno if changing like this is worst than restarting X.
is there a consense on this?