Try using a different drawing program or reinstall a different version of the drawing program.

(NOTE: Please skip this step if you're using MacOS Catalina or Big Sur since your tablet won't work without the driver in these operating systems.) Then test if your tablet still has lagging issue even without the driver. Please uninstall the tablet driver, unplug your tablet from your computer, then plug it back in.In order for us to determine the cause, kindly try the following steps: Hi Abimni Boudeli, the lagging issue may be caused by either the tablet driver, your drawing software, your computer operating system, your pen or tablet itself. I look forward to your reply so we will know how to proceed. This will help us check if it is just with your computer or if it is consistent with other computers as well. If you have access to another computer, please try connecting your tablet to another computer and check if it is still lagging, with and without a driver.It is fine if it is the driver for the Kamvas 22 Plus it will still work with your H640P tablet. Please try to install the driver for the Kamvas 22 Plus which you can download from this link.This will help us determine if the lag is caused by the driver. Try using your tablet without the driver installed and check if you still experience a lag. Properly uninstall the current driver you have, unplug your tablet from your computer and restart your computer.Kindly try the following steps that may either help resolve your issue or at least help us determine the cause of your issue: Do you experience the lag in all of your software?.The computer software you are using and its version.Your computer's operating system and its version.You can check this article on how to find it: How To Know My Huion Pen Tablet/Display Firmware Version

May you please provide the following the information: Hi Ruby, I'm sorry to know that you experienced a lag with your tablet.

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