Fix star popping up for a few frames in Lesson 9
Fix star popping up for a few frames in Lesson 9

This was getting annoying fast. I was taking too long to compose the
transforms on each star, thus, not honouring the time slice for
processing.

TheFakeMontyOnTheRun/nehe-ndk-gles20,TheFakeMontyOnTheRun/nehe-ndk-gles20,TheFakeMontyOnTheRun/nehe-ndk-gles20