Try the eyepiece focus. Your eyes may be different from where it is set at. Your eye may be adapting to the crosshairs, but it may not be set correctly. Look at infinity (blue sky or clouds) and then quickly glance through the scope on max power. Adjust the ocular focus until it is immediately sharp. That may help with the focus on objects. I find it does on my scopes.
Or, try adjusting it while looking at an object at 100 yards while its set to max power. You may find you can bring it into focus on the object, and still have the crosshairs sharp.