About Mesh Paint on RenderTarget

PaintDot
Hi all!
I’m working on a Draw function on 3D meshes on UE4.27,
Using Tick and LineTrace Drawing material on Render Target,
and i got an issue that when i draw too fast , the result goes like the picture.
wondering is there any solution to make the line i draw more like i “line”,
not lots of dot :smiling_face_with_tear:
any suggestions will be appreciated , thanks! :smiley: