Is it a ball mouse or optical?
If a ball is underneath you should be able to remove the ball, clean it in soapy water, dry it then clean the rollers inside with a dab of methylated spirit on a cotton bud. Replace ball and securing ring.
If an optical mouse, clean the light source with a clean dry cloth and use it on a NON REFLECTIVE surface. The symptoms are typical of it being used on glass, or meatlic surface.
Try these suggestions first and we can tackle other things if these simple steps dont work.
Keep us informed!