Performance issues with item frames

when there are itemframes used, i experience extreme fps drops. i have setup a 10x10 wall, each block has a item frame with a dispenser(the block doesnt really matter). then i went to the backside of the wall and checked my fps.

smooth lighting is set to max, graphics to fancy, performance to maxfps. also, i've set the renderdistance to tiny to eliminate anything else in the world.