Avoid 3-Betting Light and Instead 3-Bet More Often For Value
Very often in PLO a combo such as JT76ds makes for a solid 3-bet, but in the live low stakes games that you find yourself in it can just lead to more variance and money burnt due to how often you still end up in a multiway pot. Instead, focus on adding combos such as AJT8ds or QJT9ds instead that will not only play well in a HU pot, but also quite well in a MW pot due to the high suits and/or outstanding connectedness that you have. You won't have to worry about balance as your opponents most every time simply just won't care or pay enough attention to the fact that you aren't including more speculative hands.