My notebook has 1.5 GHz base frequency and 2 GHz burst frequency. The minimum requirements for Adobe Photoshop CC are 2 GHz or faster processors. Will I be able to use Photoshop to the fullest extent with my notebook?
Obviously not. The tunnel has a height of 2.50m. Your car is 2.70m high. Will you go easy?
No, you named the reasons yourself.
There are quite a few versions in the CC where the program can still be downloaded and installed despite slow processors and other devices. Only the work will then logically take longer. At CC, there are 30-day trial versions that you can download to Adobe. Try this first.