Well, then you must have started with a big enough BR from the beginning.
I assume that your non-compounding is very closely linked to the fact that you Martingale... Keeping it safe.
For non-martingale strategies, compounding is a good thing.
Let's say you start with a BR of £1000.
Every trade your risk/reward is £20.
(Now, this of course assumes that you have a winning system, otherwise you're fracked either way.)
When your BR reaches £1500, you increase your risk to £30. Should it go to $1400, you go back to £20. And so on...
And every time your BR increases 50%, you increase your R:R 50%.
That's just sound compounding.
Of course, this is only sound if you don't scalp, and have a RiskRewardRatio of 1:1.