Weird, intermittent drops in graphics power for Alienware 14

I have a weird problem.

I have an Alienware 14 laptop (64-bit Windows 7; Core i7-4700MQ; 8 GB RAM; NVidia 750M; purchased summer of 2013). About once a week, I will try to run a graphics intensive game which the graphics card can typically run at about 45-50 frames per second, and I will get only 5-10 frames per second.  This drop in graphics power will affect any game I try to play, and it does not go away until I flash the bios.  It's the current bios, and I just re-install it.

I have done the following:
* Made sure that all drivers are updated.
* Used the NVidia software to make sure the laptop runs these specific games using the “High Performance NVidia processor”.
* Made sure that the power saving options do not throttle game performance.
* Verified that the NVidia processor is active while the game is playing. I have an icon in the notification area that indicates the NVidia processor is working for the game I’m trying to run. Additionally, I’ve run GPU-Z to verify that the processor is actually doing something when I’m trying to run the game.

Like I said, the only solution I’ve found is to flash the bios.  This will fix the problem (all games will run well), but it always comes back eventually. Obviously, this is not an ideal solution.

Any help would be appreciated. Thanks.