Tested with two separate computers (Mac and PC) using the same cable wifi line. TV is now less lagging but still 0.2-0.5 second delays. TOS is also still lagging (DOM itself moves much less frequently than CCG's. Obviously, TOS is not for scalpers.) One day in last year, I found TV candle wasn't being updated timely. Since then, I alway compare TV chart with other charting platforms before I make trade executions. It may need a manual chart refresh sometimes. Personally, I don't trust web-based platforms when it comes to trade execution, especially for scalping.....
Thanks.