Others might now share the same views on the importance of the bow string, but to me, a quality string can make an average bow shoot better and a low quality string can make an excellent bow shoot poorly. The string is the part of the bow that does the most movement during the shot, so with that, it's important that it is of low mass. The new modern string materials, such as D-97, 8125, Deema, 452X, Mercury, X-99, force 10, (I know all those are BCY, but I'm a fan) are superior in that not as many strands are required, even for heavier draw weights, such as your 62# bow. That makes them lower mass, and the bow more pleasant to use.
A bow string won't effect your draw weight, but putting a better quality string on a bow like a D-97, low thread count string, will give the bow better performance than a thick, heavy, Dacron string (B-55, or B- 50).
I can't stress enough how learning bow string construction, and getting good at it, will enrich your archery journey. But if one hasn't the time or patience, Silent But Deadly, is a company that makes some that are hard to beat. And check the sponsor list here at tradgang, you can bet if they are sponsors here they won't disappoint.