(DId you try/look at the flow I posted?)
Ok: your scenario is interesting.
How "big" is big?
I have flows that are also huge - (no, this isn't a pissing contest) - and am only now going through optimising them because I am actually getting a bit smarter now.
Is it only one tab?
What ever way, select the tab (or nodes on the tab. But if it is all nodes on the tab ... keep reading) export then either selected tabs or current flow and post how many nodes are involved.
Hope to hear back soon.
Oh, and not to make your choices more difficult:
Have a look at his node:
It may be handy for your needs
