Environment: GW 8.0.2 on NW 6.5 SP8, eDir 8.8 SP5
GW Clients: 7.0.3, 7.0.4, and 8.0.2
Configuration: One POA (Domain 1), three MTAs (One for each of three
domains), One GWIA (Domain 2), and two WEB Access (one in Domain 3 and
one in the GWIA Domain).
PC OS: Windows XP and 7

GW Clients are extremely slow at times. Review of the POA servers
utilization shows it spiking from 4-9% upto 75% but never staying high
for very long.

Any suggestions on how to to determine what is causing the spikes or
what configuration I can set to lower the CPU usage?