I have a community server 10 slots I was wondering if I add more slots will it help the car from freezing and crashing. I'm the only one on the server
Increasing slots may or may not solve your issue.
The system checks to see how the server is running. If it detects a need for additional resources, it will auto migrate to another server.
Sometimes when slots are increased, it may move or not. We have no definite advising what may happen.
I have seen multiple posts regarding your car issue, and it may be a bug.
Check your WebUI dashboard and see how the RAM/CPU is running. If you feel it is too high, or you wish to contact Support, please do so by either calling them or creating at ticket.