I tink I found a way. I had it in gedit which is plain txt an accepted suffix so it should be here.

Speaking of slow, yes I do get some slow things. Every once in awhile I type faster than it displays. I type several keys that are not displayed then all of a sudden they are. This seldom happens and isn't worth mentioning if not for another slow action. The three farm games I play start out just fine, then they start getting slower and slower. A peek at the task manager shows normal graph gradually building up until it goes completely flat line at the top. Cpu usage at that time is 100 percent. Waiting until it goes back down to normal, Then in time right back up. Ram seems ok.
I have tried both faster,by one notch, for a few seconds and have seen nothing. Naturaly I don't leave it there for more than a few seconds.
***********************************************************

# Your patchy screen sounds like refresh rate to me, # unless you're getting other issues,like generally slow
# operation.