Hi
desertEagleEach question type on the GMAT is testing a specific skill. SC tests your comprehension skills. Acing CR requires you to master 2 skills – Comprehension and Analytical skills. You not only need to understand the meaning of each sentence well, but also need to understand how multiple sentences are linked and then only you can identify logical gaps. Finally, RC builds on the previous two skills and also tests your ability to be able to grasp the central point of the passage i.e. Your inferential skills. This way, its a natural progression of skills that you learn if you learn in this order focusing on the right methodologies.
You need to master your comprehension skills before moving onto CR. You may find these helpful:
Feel free to reach out if you have any queries!