Beam Module and noise- lowering oscialation rate

Hi everyone-
I’m working with the beam particle system module and want to lower the rate at which noise is updated. I tried adjusting noise speed and some of the other promising looking properties, to no avail- I;m still getting that crackly, electric looking effect. Which is super cool, don’t get me wrong- but what I’m going for is a more undulating, chill beam. Is this possible?