As one who has been playing to foreign audiences for thirty years, I can tell you that it matters. There are others here whom I can tell from listening to their work, have softened their accents a little.
Not much.
Just enough to be understood.
It is also something that we have to do on a daily basis, just to buy groceries.
So many words have to be dropped from the vocabulary that it becomes akin to speaking a foreign language.
As I said before, Bob.
You're doing just fine with it.
Nicely done.