Adobe times out as "not responding"ALL the time..?

There may be something working in the background on your computer that is using system resources or you could be running out of RAM or hard drive space.

Please provide the information requested.

In order for anyone to even guess, please consider volunteering enough information!   Needed are all the details about the source media, the computer configuration, the operating system, the editing process, screen shots of the failure notices, etc.

People that respond here are almost always other users and can't do anything about your satisfaction or provide reasoning about how Adobe designs their software.  That said, users that participate here do so because they know how well usually usually works.  There is a reason that it is "best selling" consumer video editing software. 

If you purchased recently and directly from Adobe you may be eligible for a full refund here:  Contact Customer Care