So yesterday i took my shit together and installed the Plays.tv client. After setting it up, i went into a csgo deathmatch, and went back out. The demo was really laggy, and NOT enjoyable to watch. I tested it a couple of times exc. changing folder location to another harddisc, changing ingame resolusion, closing down overlays like Razer Synapse and Sweetfx. I also submitted a ticker, without response after 22 hrs.
Having the Same issue!!