"How can I troubleshoot entry orders not filling?"

Here s a question from Angel R. (name used with permission): Angel R.: I ve been testing an intraday trading strategy. I wanted to ask you about the following: I m trading with IB-Gateway on a VPS located in the US. Everything looks good, but lately I ve noticed a delay in IBKR executing my entry orders (more than 10 seconds, up to 1 minute!), which includes increased slippage in the entry price.…