Fps drops in game

@harshgupta4842 are you sure it's your wattage that drops to 25, or do you mean to say your FPS drops to 25, since you referred to FPS in your question. If it is the FPS then it is entirely possible that this is caused by your hardware being limited. In particular your VRAM. Black Myth: Wukong uses a large amount of video memory (VRAM). It uses roughly about 7 GB at lower resolutions and scales up to 8 GB and even more if at 4K and with Ray and Path tracing. Check on here for more information on that.

If your specific G15 model has a GPU with lower VRAM (like 4GB or 6GB), the moment that this memory reaches 100% capacity, the game will be using your main system RAM to load textures. System RAM is much slower than VRAM and that is what will cause an immediate FPS drop and all that comes with that like stuttering pictures, poor video quality etc.

You may have reached to limits of the hardware on your laptop. You may need to find a different game to play on it.