After running multiple nodes for a while I noticed that my all my nodes are keeping a live state of the mempool of tx’s while some do not even produce blocks. This seems unnecessary and from a resource view I would like for the nodes that just sync the chain locally for application to be optimized. Is there a possibilty to turn of this behavior? In the mainnet-config.json there is a setting for the mempool but I think the question is more broad. What are the optimal cardano-node settings for running just a syncing node that needs to sync the chain (possibly with cardano-db-sync running in parallel) and can send transactions?