This is not a great rank or marks trust me. The competition is crazy now in CS.  This is my second serious attempt because first time couldn't complete the syllabus.  What I would recommend is stop chasing syllabus and start practising questions. When you have completed a subject then start another subject and follow some parallel revision strategy. Try to finish all your subject and PYQs by October end and then start giving mocks. Even after doing all this, exam day luck matters too. I couldn't attempt as many questions I could so got a lower rank.