Upgrade times used to be even slower I think when every upgrade attempt had to be sent to the servers. I agree with your post though, it can be a lot better. 

There is a trick if you use Bluestacks: https://www.youtube.com/watch?v=WJZTx8ZiXkE

I started using it because of this trick.

I can't roll on phone / plarium play anymore.

The  upgrade  system  is  Atrocious.   Honestly  terrible  stressfull  unexciting  and  frustrating mechanics why  not  just  averg  out  all  the  cost  of  each  rank  upgrade  and  have  a  set  silver  cost.  

i  mean  who  enjoyes  watching  a  rank  up  from  lvl7-8  fail  10+  when  aprarntly  it  should  be  a  "medium"  chance.

what  exactly  is a  medium  and  high  chance,  give  us  a  % !!!

so  much  left  out  information  in  this  game   which  should  be  there  and  creates  unneccisary  frustratio.

well  thats  it  rant  over 😂

I find  it stressful as well at times.

At which point I set it to auto until it reaches the desired level.......as I walk away from the computer to do a quick chore around the house because  its too painful to watch   :D

But I have learned to deal with such frustration in this manner. It certainly helps to return to the computer to find artifact upgraded and to not have watched all the fails ;)