Hi, I need some help with wedging pyro simulations in Houdini.

I want to generate 30 variations of a pyro sim using the Labs File Cache node with a wedge setup. When I try 2 or 3 wedges, everything works fine. But when I try 10 or more, my RAM gets completely saturated.

It looks like all the wedges are starting at the same time, which overwhelms my system.
How can I force Houdini to cache the wedges one after the other (sequentially), instead of all at once?
Ideally, I'd like to process them one by one — or maybe two at a time — to avoid running out of memory.

Any advice or workaround would be really appreciated!