It is not time that is going fast it us who has a lot of things to do and don't have enough time to accomplish everything during the day.
True, modern technology made everything faster and automatic but it created more complications and additional work that we need to spend time to learn it before we can proceed. After we learn one, here comes another new one.
We are no longer in the time that we just wake up in the morning drink a cup of coffee, go to the farm, come home in the evening, sit down with our family then sleep.
Just in the evening alone, we watch TV, check our emails reply them, answer the phone. When we wake in the morning we rush for many things before going to work.
And that's why we say time runs fast