lines

Is there a huge difference between sensor image quality between 1, 2 and 2plus lines? I went to the local Hikvision shop/distributor and asked for a 3MP Dome camera for indoor use (no need for night vision). The cheapest one was 1-line, he said for the same price I can have 1.3MP 2-line, and...

This is a capture from my Hi3518e-based IP camera. Do these look familiar to anyone? Any settings I can adjust to fix them?