When you stay out the grey area of the Height Velocity diagram you shouldn't have a problem.
That why there is one.
I don't know how the R-22's HV looks like but I'm pretty sure at 500 ft doing 60 you're (way) out.
For bringing your rotor rpm up I would suggest S-Turns, because you don't want to slow down below 60 kts. in a R-22/Schweizer