It’s basically the same as your aircraft controls. Throttle up/increase will cause lift and you need to push your stick forward to go faster. Throttle down/decrease will make you descend and you can pull the stick to fly backwards. To fly level you need to experiment with throttle adjustment and forward stick.
Hope that makes sense? Choppers are flying exactly as I’d expect. They’ve done a good job of reproducing chopper physics.
And hey while I’m here:
Gooahh naaoowww … Gethh tooh deyy chaapaaarrhhh!!!