Why the lines drawn are not smooth/acurate

Question

https://code.sololearn.com/WBN6HeEP4Bx8/?ref=app
Why there is a high gap between coordinates when each time touchmove event got triggered

Answer 1

Add touch-action:none to canvas element , browser events are inteferrring with touchmove event ,and so setting touch-action to none prevents them to do so ,I had a similar problem yesterday

Answer 2

Thanks
Its work fine now 😃