i had a problem like that on farmville..or was it farmtown.. hmm.. anyway I was told to lower quality as I kept getting frozen and had to reload plenty of times.. sometimes after each click.. so I lowered the quality and it did help a bit.. nowI am back on normal..

how I clicked it was right click with the mouse and a window shows quality.. there you click on low, medium or high.. maybe try doing that and see if it works

not sure if it´s the same for every app.. because no window popped inmy game I had to lower it myself..