Happy curve-fitting!
Define "constantly".
I use 2 types of strategies: a conservative one, that never changes and focuses on long-term-stability. an an aggressive one, where i adjust some parameters from time to time.
My strategies are adaptive to changing volatility, so adjusting parameters is not necessary.
But - to maximize profit I have some aggressive short-term strategies, where I adjust the parameters for profit-taking every few months.
How often do you adjust?