Update the Graphic card driver. Visit the support site of the manufacturer to download and install the latest driver.
Open the NVIDIA Control Panel.
Go to Manage 3D Settings > Global Settings:
Find Power Management Mode and set it to Prefer Maximum Performance.
Locate Vertical Sync (V-Sync) in the same list.
Change the setting to Off.
Visit:
https://www.asus.com/supportonly/fx506hm/helpdesk/
to download and install the latest chipset and IMEI drivers.