He said it was a 60 to 70 lb bow in his post, and its set at 60 which is the lower limit.

The answer is yes and no. You could make your bow draw less poundage by messing with the length of the harness and string. Longer cables, and a shorter string would do it. The problem is it would mess up the draw length and the timing of the bow and hurt the performance.

You will need to get different limbs to lower the poundage any more most likely.

I agree with the above, try shooting less for a while, or less arrows at a time. Like try shooting 3 arrows in a row and then go get them. Or even on at a time. This gives your muscles a little time to relax between shots. Also take your time and shoot slower. And take a break for while when you get tired.

And you need to shoot more often but less time, do you understand that? You can't shoot for two hours straight and kill yourself, then wait two weeks and try it again. You need to shoot for like 20 or 30 min every day or so. Or at least draw the bow back and let it down. This will build your muscles up, it takes time though.

And I also agree with the draw length. If it is too long it makes the bow harder to draw.

If none of this helps, then you might want to take a look at getting different limbs or a different bow.

Paul