Apps very slow load

For some months we have been experiencing very slow load times for Illustrator and Photoshop. It takes upto 10 mins to launch each software which is very frustrating. Happens on both office macs. We update the software regularly. (I also run an older mac at home but this loads in seconds). Any suggestions woud be appreciated as we have tried all settings and nothing improves. We have fast internet so connection isn't an issue.