I have noticed that my game in progress slows from 75 FPS to 37 FPS when I add in the a single INK command! I am displaying info about the selected unit in a box in the corner. The stats are in white, the 'headings' are in blue. Just before I use the TEXT command I switch to the blue ink then text the heading then switch back to white with another INK command. This cause the frame rate to plummet!!! I know this is the problem coz if I omit the INK command and simply display the info in white then I get the higher frame rate.
Is the INK command inherently slow and if so, how can I do this but faster? It seems like such a simple task.