Attatched is how the pen lags! thank you.
Hi Hasshen Zahan, thank you for providing all the steps you've done so far and the video of your issue. The dimming of your tablet's light is normal when you touch the pen on your tablet's surface. However, the broken lines you experience when you draw is not normal. Have you tried your tablet without the driver and if you have, is the issue the same? If it is the same without the driver, then it is most likely that your pen may be broken.
I will create a ticket for you so we can do one final test on your pen before we can arrive to a conclusion. I will further assist you through the ticket.
HUION Customer Support