Bios Mods -The Best BIOS Update and Modification Source

Hi, please help me, I need a bios modded for my notebook, I trying to change the max temperature frum cpu, but BIOS dont have this option. because I getting constant fps DROPS after a while playing games (reach 72 degrees, 15 minutes playing).

Sony VAIO® Fit 15A - SVF15N27CGB (buyed in hong kong - HK)
BIOS: InsydeH20 3.7
- Intel Core i7 4500U 1.8GHz (Turbo boost 3.0 ghz)
- Windows 7 Ultimate 64bits (come with Win 8.1 64bits)
- RAM 8gb ddr3 sdram
- 15,5 '' LED full HD triluminous 1920x1080 wide 16:9
- Intel HD graphics 4400
- Nvidia GeForce GT 735M

pls

bump?