2014 grizzly 550 has no balls

my 550 only has 900 miles on it an it just dont seem to have a hole lot of low end grunt when in high range what i mean is i can be at a dead stop an gun it an the rear tires wont even break free an the front end wont even come off the ground i owned a400 honda rancher that had more balls than this quad any sujestions on how to make this quad better