You can reduce the amount of point in the rope artwork. You can elect one of the white fill, then use select >> same fill color and delete.
In the screen shots above I selected a few manually and deleted, and put a green shape in back to test. In summary you can go from 4888 to 861 points by deleting all the white fills. From your artwork you do not need them, if you do can show you how to make that one shape. Object >> path Simplify >> is what I used to determine how many points you have, you could also use that if you want to reduce further. Save your final as a .ai with pdf compatibiulty on (that is on by default), and place that in InDesgin. Placing a .ai in InDesgin will act as a symbol, as you will be using the same graphic for all instances of the rope, so therefore you final pdf should not get too much larger for every instance, then only additional information is the rotation and position, not the vector points themselves.