Sort of...
With a forward CG the horizontal stab needs to create a greater down force, further increasing the amount of lift the wing needs to develop.
In VERY simplified terms, the wing needs to develop enough lift to overcome weight + the total downforce of the horizontal stab. If the CG is forward, the stab needs to create more downforce, thus increasing total lift required (almost like increasing your weight).
You will need a higher angle of attack to maintain the lift for a given speed (as opposed to the lower angle of attack required for a lighter and/or further aft CG aircraft). Since you will need a higher angle of attack for a given weight, you will be closer to the stall angle of attack. As you slow, you will hit the stall angle at a higher airspeed.
Hope this clears it up, this is hard to explain without pictures.