Hi Justin,
Tried out the method you have suggested, it does works to a certain extent but not exactly what I am looking for (I apologize for the way I have phrase my question now that I re-read it)
It is more of "I wanted the image sequences to play smoothly on the go".. But even so, I realized that even with the use of image planes, my scene was somewhat choppy/ lagging to begin with due to the x number of rigs used within the scene, eg. tried to scrub within a 10 frames range, at some frames, it took slightly longer than the other.
I suppose, in cases like this, Maya is trying to display the number of items in the scene and the imagePlanes/ sequences got affected by it as well?