Cracked Motherboard

I have no ideal in what sub-category its in so i took a random sub-cate

So i have a laptop that the motherboard is cracked on the bottom left
(got crushed by something (like a hammer) on the bottom left)


Laptop:
- HP Pavilion dv6
- Windows 7
- AMD (Vision A6)
- Quad core and radeon dual graphics
- 1G video card

Damage area:
- Bottom left ( 1.5cm under the ''ctrl'' bottom)
- Cracked (1cm long around a nail)
- damaged area: diameter (2 - 3cm) got crushed a bit under the surface.
but the material seems intact.


Now:
I can still open the computer, it runs normally.
Sometime the computer is fast and then turn slow (not stable)
fast (30sec - 1min)
VERY slow (freeze more then 3min) (when i open something)
Its even very slow to shut down or sleep the computer

Do you guys think there's a way to repair my laptop.