No worries. I never ran "leveraged" anything for other people. My 15-minutes of fame came from running a mutual fund timing service... and that was before the days of leveraged index funds... all trades based upon "price TA"... same as now for me and my family money.
"Leveraged ETFs" are easy to understand. The fund managers have to pay some premium for leveraged exposure.. and those "cost premiums" in whatever form are an expense, which detract from the "target" performance ... that's all.
You can run up a comparo chart of some index vs. 2x of the same index since 2009. The leveraged fund performance will be greater than the index, but due to the "costs" of acquiring leverage, somewhat less than "2X".