Devices become very slow after installing LANDesk Agent

Hi All,

when i push the agent to all devices all PCs become very slow and stuck many times, even i check the agent configuration all the schedules tasks for Anti-virus or iventory scan is not working during the slow times in the PC, i check the agent wacher and make the interval time every 3 hours but the PC still slow, All PC is (i5) cpus and 4 GB of RAM.

Please your help

Thank you