System Optimization

I recently moved to a new VPS for testing and I can see a huge number of open files. Usually in AWS this used to be 1024. I am wondering as to what more optimizations can be done here. Am I checking something else?

root@e2e-87-11:/opt/traccar/conf# cat /proc/$(pidof java)/limits | grep "open files"
Max open files            524288               524288               files    

You see a huge number of open files or a high limit on open files?

A high limit on open files. Haven't seen such high limits before. Hence a little confused.