I have a requirement to open a lot of forms concurrently (+- 50). Each form contains a grid doing realtime updates (market data). The problem I see is that it does perform well with 10 forms but when opening 50 painting becomes very slow. It's almost as if the grids share a message pump. I'm opening the forms in threads so I thought each form would have it's own message pump.
Any idea what's going on?
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