keep in mind - a "Entry Process" should take a fraction of a second to complete - therefore people confuse - the "Entry Process" limit - with how many visitors they can have on their website - A limit of 10 "Entry Process" does not mean only 10 people can be on your website at once - because the likelihood of all 10 people hitting your website's server at the exact same time (very small part of a second) should never happen
If you have little traffic to your website but are constantly at the limit of 'Entry Processes' - it could mean something is wrong with your scripts and they (the scripts) are active longer then they should be
x10hosting has found - in almost all cases - that hitting your account's 'Entry Processes' limit - stems from:
1. Out of date scripts
2. Excessive plugins, themes, addons
3. Poorly coded plugins, themes, addons
4. Not taking security measures such as secure wp-login\xml-rpc so bots drive up resource usage
5. Not keeping a database cleaned up, a forum or Wordpress blog with 50,000 spam users will use a lot of CPU on any user processing
6. Crons that do intense database or other processing