Tradovate app is killing me

I can’t be the only one experiencing all these kinds of issues with the Tradovate app on my iMac. Whenever I have two screens going at the same time, it lags so bad it keeps flickering. Sometimes I can’t even see the charts, but when I use the webpage, it is perfectly fine. Or maybe I am doing something wrong. I downloaded the app so that I can have multiple screens, and that is not working. I tested my internet, and that is working fine. bro this is annoying