HELP !.... am I going CRAZY?

I can’t seem to get a straight answer from brokers or find out online after weeks of searching if what I am trying to do can be done.

I have a strategy that involves scalping only at high volatility times… i.e. economic data releases such as US Non Farm etc…

I learned what slippage is the hard way… as on my demo account execution speeds were instant, but as soon as I switched to a live/funded account I found that execution speeds were crazy slow…in one case a 9 second delay in an order being executed !!

My quest has been to learn about account types etc so as to discover if there is a Broker or account type that I should be aiming for to achieve zero/or close to zero slippage.

My search has gone round in circles.

PLEASE… anyone ??.. does this type of account exist…?

What should I be searching for in order to get an account with the fastest possible execution times during high volatility?

Thanks all in advance.