Most problems with games in laptops tend to be related to its limited graphics capabilities and/or the lack of system memory after the graphics has taken its share.
Unlike desktops, where you might flash the BIOS to accomodate a newer processor, there is usually very little need to do so in a laptop as the hardware is generally not upgradeable.
If you do decide to flash your BIOS, you should follow all instructions provided with the update to the letter. Failure to do so can leave your laptop as a very expensive paperweight. Needless to say, you should only get this type of update from your laptop manufacturer and not from some 3rd party site (including the BIOS manufacturer themselves, as they only provide the basic code which is then customised by the laptop manufacturer to suit the laptop in question), and you should make sure that it is specifically for your computer, in particular check the full model number (including version/revision) to make sure that it applies. Also, read the documentation carefully to see what changes are made and what issues it fixes. Checking their Forums to see what others with the same model laptop have done, and what their experiences are/were, is also useful.