HMM. well i say work on a limited ROM. In basic stop the move where anyone everyone else would or earlier and ain to build mass etc and Hopefully lose some flexibility. in your case you are to flexible for your sport. that happens even to ppl who stretch a lot you can become to flexible for your chosen sport Like PLing lose the heavy stetch reflex.
HMM also may sound crazy but for benching etc maybe a lose bench shirt that would pout the tension on almost like the usual person etc.
In thje end work with what you have bro dont strecth to muc as your flexible as hell.
about all I can think of not really something I know a Lot about.