graphics (texts, lines) are missing few pixels in Xcode simulator

>do you think macbook graphics may affect Xcode simulator graphics

Xcode simulator -is- your macbook graphics, so yes. The simulator is not an emulator and is best relied on for UI flow, not as a 100% representation.

Quoting Simulator Help...

Test apps/Differences between simulated and physical device/Display differences

• The resolution, or pixels per point, on the device and on the Mac can differ. This results in text and images that appear jagged, especially with smaller text. Increasing the scale of the simulator window can make text and images appear clearer.
• The color gamut of the Mac screen can differ resulting in inaccurate colors.