The Current Situation:

We installed Odoo on 2 servers and build the load balancer in such a way that connect the Nginx and check the 2 servers status and based on the result the user will be redirected to any of the working application servers.

Also for increasing the system performance we put the sessions on the servers theme selves ( I mean Local) and activated the sticky sessions.

The Issues:

- For some users, the system display a messy design for the system because of some css/js not loaded well.

- The system also take too much time to open any screen.

Investigation:

We investigated the cause errors and found that in the core "base" add-on, the system generate some numbers in the run time for those CSS files, we also have doubt that may be the load balancer and nginx are causing the issue also because currently the load balancer check the nginx before redirecting the user the destination server.

Based on the mentioned inputs, could you recommend a solution to fix the messy design and the loading time issues?