I am currently opening 16-20 booktraders' views with IB simultaneously and it starts to create a big lag on my system quite quickly- especially with increased volatility. Has anyone had any experience with this or tips to reduce this, I really would like to have at many open at once on my screens. My computer is brand new and quite speced out, so I don't think this is the issue. Thanks.
I have the same problem with just trading options. One thing you could try is to increase memory allocation in IB/TWS Configuration/General.
I've only one book trader and it shows only 2000 Rows. It's laggy as hell. After clicking a ticker from my watchlist i 've to wait like 5-10 secs...