jmstresstestbitcoin.cashLWe won't. It seems the mempool admition rate of the network is limited to 3MB per 10 minutes. 2hours without a block, then maybe mempool would grow >32MB
https://whatsonchain.com/tx/41ca5cce665abb4c28d4654842216d9cb576ab903ca2b0c1b48f05bc28f4bdac