Demo vs Live

MT4 Broker question. (I don't really want to discuss the morality of broker activities, just the actions)

I'd imagine that the difference between a live account and also a demo is that there's trader \aggregation script taking place so there should be longer delays to a live account.

But given that my new system has not gone live and can be sensitive to both slippage and delayed implementation (forcing requotes and implicitly total slippage for the planned bid\ask opening worth ). What are the experiences with normal non news based trading?

Following is the total time elapsed for my ea opening a position on a demo system including retrying following requotes My codes implementation time is sub 100ms.

(data is an aggregate of mig, ibfx, alpari, fibo).

00:00:01.61
00:00:01.86
00:00:05.50
00:00:02.75
00:01:11.938
00:00:01.844
00:00:00.328
00:00:00.687
00:00:01.344
00:00:01.625
00:00:02.391
00:00:03.281
00:00:02.313
00:00:02.328
00:00:02.937
00:00:00.594
00:00:01.532
00:00:02.016
00:00:02.375
00:00:01.625
00:00:05.438
00:00:00.547
00:00:03.579
00:00:00.50
00:00:00.922
00:00:00.422
00:00:06.641
00:00:02.125
00:00:01
00:00:00.344
00:00:02.469
00:00:02.312
00:00:00.859
00:00:00.859
00:00:01.625
00:00:01.796
00:00:00.844
00:00:01.625
00:00:01.734
00:00:01.204
lt;snipgt;
How much slower would a live account be on average? (Yes among those opens took a minute to open. All the trades over were profitable to the EA)

Again, please be aware that not only can I never news trade but that I avoid trading about those events. I'm all set to use a database list to switch off the system completely around news events is need be to prevent it.