Ah ok!
There was a PR I was working on to switch off logging by default (always the way I have wanted it), but I got bogged down in other work. It might be possible to implement that before the Impossible Futures network, but can’t guarantee that.
In the mean time, you can use the ANT_LOG variable to control the logging. If you wanted to make it as minimal as possible, you could use something like this: ANT_LOG=ant_evm=info. I happen to know that ant_evm hardly logs anything, so this would almost be switching it off.