Intentionally Lower Framerate for shader?

Hi, I hope you’re doing well today. I’m trying to create a shader in shadergraph with a sketchy look. It’s a work in progress, but right now I just offset the texture and wobble the vertex positions. This looks fairly convincing at low framerates, like in the first gif. However, in-game the shader runs every single frame, which is way too fast and ruins the effect, you can see this in the second gif… Is there a way to make a shader that only updates every few frames, or possible runs at its own framerate entirely? Thanks.
[Imgur: The magic of the Internet](Imgur Link)

I’m no expert in this stuff but it seems to me that you can just use a step function on the time variable used in your shader to ‘flatten out’ the incoming time. That should make the effect last for a fixed amount of time based on your step size.