I looked up Asus N3540 with an Internet search and the info I found only listed Intel graphics.
According to the system requirements for Jerry McPartlin that I found herehttps://gamespecial.com/10638/jerry-mcpartlin-rebel-with-a-cause/
the game needs a minimum of GeForce GTX 275 or AMD Radeon HD 4770
I don't see Intel graphics listed there.
The info on the Internet Archive Steam page for Jerry McPartlin
says the same thing.
No Intel graphics listed.
my problem is that the mouse is very erratic and its very hard to control
That usually means your graphics card is not powerful enough for the game.
If you have Intel graphics, it can also mean the game developer couldn't be bothered to support Intel graphics.
If you have a desktop computer with a real Nvidia or AMD graphics card, try playing the game on that.
No worries. The techies here may have some advice to give you.
The best advice I have for gaming on a laptop is to buy one with Nvidia or AMD graphics if you expect to use it for any games other than casuals. There are even some casuals that require Nvidia or AMD graphics.