@Rangervegas Maxing the limit for household funds is not that difficult after playing a household for multiple generations.
But it does cause the problem you mention. After reaching $9,999,999, my game lags noticeably whenever a household member receives yet another investment payout from the Fabulous Wealthy aspiration.
It's probably against the rules of the legacy challenge I'm currently playing but...I use the money cheat to reduce household funds to $3 million every now and then.
I've previously tried using up the money by buying retail lots and more "stuff" but that only exacerbates the lag, lol.
By the way, did you ever get your payouts? And what happened with that salmon?