Help with printing an angle that end's up looking like steps

[gorf26]

When i print a angled part all the way up it looks like steps instead of a smooth angle..
Like in the pic.

its a delta printer petg and .6 nozzle layer height .53 speeds are fairly slow.
It prints ok if i lay it on the side, but i have slots in the bottom and didn't want to use supports..

Any suggestions

Thanks gary

[engikeneer]

@gorf26 reduce your layer height?

[warrut981]

Have you use good quality papers?

I means once I faced this type of problem while I get bunch of thin paper.

[o_lampe]

@gorf26
...what engikeneer said,
use smaller layer height but print infill at every 2nd layer only, to safe some time.