How to kill "spikes"?

[beetlewing]

Hello,

Somewhat new to all this stuff... brand new to the community. I have an issue that's driving me crazy and was wondering if anyone has any tips...

It seems no matter what, my renders always have long, pointy spikes in them. Is there a way to smooth those out, or is it just a matter of selecting another location/formula?
(mandelbulb3d 1.9.1)

Here's an example with one just below the center:



Just wondering if there's a smoothing option or something that can get rid of these.

Thanks in advance! Looking forward to sharing and growing with this community!