ajuda : o traço fica falhado com menos zoom

Something is not right here.  A3 at 300dpi should be 4961 X 3508 pixels.

If I set that to the same zoom ratio as your first screen shot it looks like this on my 4K screen where as you's overflows your workspace.

I wonder if you had the image size set to mm or inches, and the image is huge causing your system to lag.  Check your image size in pixels and get back to us.

Here is translated text:

I create an A3 size file of 300 ppi, I make a curved line with my brush that is at size 11 and the curve does not appear directly, it is all failed, when I zoom in the stroke is there. Brush spacing is at 1%.
I want to look at my drawing with less zoom and it's getting all flopped, I'm losing track of how it's looking.
Is the GPu driver up to date
How can I fix it?

 

By @vanessa38702182mybj

Could you provide a screenshot to illustrate the issue, please?