The steps below can be followed to increase the number of LiteSpeed processes. Note that this is not available on all LiteSpeed licenses as described below.
How I can increase Number of Processes more than 3 on Litespeed Unlimited plan?
1) Access the LiteSpeed WebAdmin console. This can be done by visiting the hostname on port 7080, or via WHM.
Hostname (replace hostname.domain.tld with the actual hostname for the server):
Home » Plugins » LiteSpeed Web Server Plugin » WebAdmin Console
2) Select "Configuration"
3) Click "Edit" to the right of "Server Process"
4) Enter the new value under "Number of Processes"
5) Click "Save" to the right of "Server Process"