Load chain db ,tooooooo inconvenient

both mainnet and testnet NIS node, I download the latest chain db from resource site,and start the node,the node first load the db data and then start syncing.what’s my problem is everytime the node proc down then I restart the node, node begin to load the db then sync again, even the node has finished sync the chain before its proc down.although load the db is fast,but it also cost a lot of time, actually,it’s inconvenient, and since the node finished sync, why it reloads the db when restarting the node proc? Is there a better way to solve this?

The chain needs to be load every time you restart the node. So only way to avoid this is keep node running.