Vanguard ,
I can get extraordinary results from less powerful machines and have done so for years, even little Puzzis, or old Hydromists, etc...............in other words, it's not the machine, possibly not even the chemical, you're using, so, it has to be the operator
Are you new to this business..............are you suited to this business...............have you the application and self discipline required, to get results ?
Not everyone is able to get good results in this business, no matter what they use !
I've seen many people, totally unsuited to the industry, who simply can't apply themselves, to the task, or seem incapable of learning the basics and repeat the same mistakes, week after week, or even for years.
It's possible, of course, that you just need help and if you listen, there are plenty on here offering it.
Not meaning to offend, but, if someone blames their tools, they should have their techniques checked and read the labels, etc.
I was a novice, years ago and learned by my mistakes, but ou are fortunate in having a load of experienced people who can, and will help with your queries.