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I would like you to try disabling your touch pad on your laptop and telling me if that helps please.
Method One Shortcut Key
Method Two Manual settings (ELAN/Synaptics)
This method is only applicable for Lenovo V, B, K, E series laptops.
Click the link and it will take you through the process.
Usually it is has blue letters on the key, and says Fn. You hold that down and then click on the F* key that shows a small blue picture of your touchpad. On mine it is F8.
Please let me know where we are at with this so that I can further assist.