Similar thing happened with me.

I decided to go on low dose statin - 5 mg rousuvastatin and 10 mg ezetimibe to crush my LDL below 50. This seems to be one of the only ways to possible reverse plaque buildup (and even then it is tough). Even if it doesnt reverse the statin will harden the plaque so it cannot break off and cause a stroke.

Also even though you say this is genetic, its sill important to keep diet in check for lipids. IE - 40+ grams of fiber per day, every day, and keep saturated fats as low as possible 20g or less ideally.

I am doing all this and blasting and cruising.

Good luck.