The tangling of the fishing line, is often refereed to as, "Bird-nest"! Bird-nest is caused by the reel spool, continuing to rotating, after the fishing line has ceased being stripped from the reel.

If you have a tension adjustment on the reel, you need to increase the tension, until the reel spool, stop at the same time the line ceases being pulled off the reel spool.

If there is no tension adjustment, you have to adjust how strong your are pulling the fishing line, from the reel spool.

~Parnelli

PS: I have an old Pflurger Baitcast Reel, that did not have a tension adjustment. It came with a leather pad, that rested against the reel spool, for you to apply pressure on the reel spool with your thumb. My grandfather used this reel for fishing for Pike in the 1940's.