LFO rate glitch

LFO rate glitch
« on: October 27, 2017, 11:31:38 AM »
Hi I noticed that when I modulate the cutoff of the filter at a rate of around 160 "frequency" whatever this translates to i nHz using a RV saw shape it stops modulating the cutoff and kind of slows down. It doesn't sound like it reached audio rate and sound slower than at a rate of 150/140. Has anyone else experienced this ?