I'm happy to solve my issue.
Thanks much stw!
It was an added view cache on my waveform,
that entirely minimized the cursor draw.
Now I just have to figure out how to make my zoom
always max at 1 sample, whatever length sample is in there.
I need to try and set up the cache myself,
to figure out what is entirely,
but I think it's that it renders to .bmp.
Thanks fer the redraws minimizing tip,
the problem with that is that on zoomed samples,
the 25 is jumpy already.
I will look at the heartbeat system again,
essentially triggers are more accurate iterations?
U r welcome to my schematic infuzion.