Jagged / pixelated lines even after enabling the Full Scene Antialiasing


I have a Macbook Pro 10.12.3, which uses an Intel Iris graphics card. I have downloaded Harmony Pro and I am aware the graphics card that my laptop uses is not the recommended.

I have read previous posts and I have ticked the box which enables Full Scene Antialiasing, but even still the lines are very jagged. I have tried exporting something and it does export at a higher quality, but even still it is very hard to animate with the drawing lines as they are.

Is there anything i can do or is it just the nature of the program with the graphics card it has?

Please please please (getting desperate)

Thanks in advance