Thank you for running a Snowflake proxy. The high bandwidth usage is not abnormal. If you want to limit or reduce it, you can try different settings of the -capacity command-line option. The default is unlimited; you might try -capacity 10 and adjust from there.
The (currently) two Snowflake bridges together transfer 100 GB about every 2 minutes, on average. So while 100 GB in 24 hours for one proxy seems like a lot, it is still just a small part of total Snowflake traffic.
I’m sorry that the proxy is crashing and restarting. It is probably a bug in resource management. You can read more at the below thread and issue: