Is it possible that BIG-IP loadbalances TCP Packets indivisually ?

If you want to just arbitrarily load-balance each TCP packet individually, you could try this rule:

when CLIENT_ACCEPTED {
   TCP::collect
}
when CLIENT_DATA {
   LB::detach
   TCP::release
   TCP::collect
}

This will cause the back-end server to be detached on each packet then then the load-balancing engine would re-load balance and re-attach to the new server.

If you have some sort of transactional boundary that you want to load-balance, then you would need to add logic to search for that boundary and do the detach & release logic much more carefully. There are some examples of this on codeshare under transactional load-balancing.