Runs Normal Then Slow On And Off All Day

started two weeks ago...we did nothing new

sometimes things are just right ...fast and normal
then, without any warning things are all on a delay...
then 5 minutes later back to normal

did all my updates and cleans... nothing abnormal
did some compatibility runs with chrome and now that is all messed up
and no change...can't get chrome back to the defaults...now get their pop up
all the time & have to click on changes or it will not let us get on the internet

still have the problem... have windows 8.1 and chrome browser as default

 

i did try and reset but it didn't work
now I have made modifications to it and get a pop up window all the time now

 

I was hoping that someone would recognize the symptoms and tell me just exactly what was going on...
right now, everything is fine.... 15 min from now, it could be slow... one just never knows

 

okay