slide out is slow

Try lubricating underneath. The two bars with the "teeth" go into square tube bars and rub there. Spray non grease lube into the square tubes and along the teeth bars especially their sides not just the teeth. Best spray by far I find is "Jig A Loo" Made a huge difference in our slide moving better

http://www.canadiantire.ca/AST/browse/4/Auto/3/AutoFluidsChemicals/LubricantsPenetrants/PRD~0381551P/Jig-a-Loo%2BLubricant.jsp