window opacity slider causing SEVERE network lag

I happened to notice that the window opacity slider no longer effects the opacity of the colored portions of the windows in the user interface anymore, if it ever did.
I thought this was odd and a possible bug(probably is), so I went to the options.

I had my window opacity set to 100% since changing my window options earlier. I clicked the slider and quickly moved it to 0% and back to 100%, looking for changes and hoping it would fix it if it was a bug.
It did not fix it so I quickly flipped the slider to minimum and back to maximum again.

So, I flicked the slider between maximum and minimum at least 5 times in quick succession.


I then noticed my netgraph, which I always have visible, start to have sever yellow spikes well off the graph and registering a "SEND" number over 107000 and resulting in almost 1000 "retransmitted" packets as well as over 100 "duplicate" packets and 50 "lost" packets.
The netgraph also registered this a lot faster than normal. Normally the netgraph crawls across the screen, maybe showing a couple minutes of the network ping history. It was as if time accelerated and the entire graph filled with yellow for at least 30 seconds that filled the length of the history at least twice.
I was surprised that the game didn't crash.

I am guessing this is easy to see on another computer, though I don't know if it will show as obviously on the netgraph when on a faster internet connection.
Try it out, but be careful.





Edit:
I find it odd that a graphics option, that affects only my end especially before I have clicked "apply changes" or "accept" or whatever, would cause any network lag let alone the severe lag it did.
That is not good.