So you set the rows and risk and let it go on auto bet, I assume.
Since, I usually only wager 1$ per time I don't go for high risk, since I believe statistically I could not manage to get up to 1000 tries before running out of money.
I could also try to go for a low risk configuration and elevate the wager some time to see how it goes.
Yes, I use an auto bet, but I don't bet as big as your bet in each round, it's just below, sometimes even at the beginning it's only $0.01 and increases it periodically every time it reaches several hundred rounds.
Playing plinko at stake is very light unlike in one of the casinos where I tried to play it and the game didn't run smoothly.