if my napkin maths is correct, if your limited business is making £124,000 a year and you're the sole owner and director, you can pay yourself a salary of £12,570 (personal allowance), put £60,000 as an employer contribution into a pension, and take out £37700 as dividends (£500 allowance and the rest taxed at 8.75%)

this way you will have extracted £107,015 out of £124,000, so an effextive tax rate of only 13.7%, although 56% of that will be in a pension which you won't be able to access for a while and could have tax implications depending on how you take it out

still, I think this is the peak efficiency you can reach at this scale without shenanigans.