Your node is synching the entire blockchain and validating the consensus rules...
BTC
- NBXplorer headers height: 783192
- The node is starting...
LTC
- NBXplorer headers height: 2447794
- The node is synchronized (Height: 2447794)
Watch this video to understand the importance of blockchain synchronization.
If you really don't want to synch and you are familiar with the command line, check FastSync.