I was refering to the link posted and specifically during The BoB.
The link was to small automatic electric MG turrets that never made it past testing. Fitted to a shackleton (so that gives you some idea of the date!) Computer cotrolled.. I think. I know they had them later. I wasn't aware of anything like that being around in 1940.
And when I said 'not exactly fast' I was comparing it to pointing and clicking with a mouse, not compared to other turrets. It gets confusing when you mix reality and sim
Something of interest I found out when looking at Aerial guns/gunners. USAF Aerial Gunners (in most cases) weren't credited for kills individually, the kill went to the Group. So even if you shot down 5 you'd never get Ace status. There's a list somewhere of the top Aerial Gunners in WWII. 17 kills is the highest I've seen. Most seemed to get 4 or 5.
Can't have been easy.