Hi,
unfortunately I see that the most of the times the users install LUA without a specific reasons instead of just using the SEP Manager that is already able to manage the contents deployment in the most of the installations.
Please, let us know what is your expectation from LUA, maybe it is possible to simplify your SEP infrastructure, improve the performance and resolve your problem.
How many Symantec products? How many sites? how many clients in total and in each sites?
I don't know if you did it but installing the Manager and the LUA in the same machine is generally the worst practice because there is no load balancing that is the main LUA target.
Regards,