Fibbee, Just happened to see your post, and while I'm not savvy about automated strats or tech in general, I saved this recent post (as I too am considering the need for a new computer): (from post #4 of the thread):
...Depending on your overall setup, a valid alternative might be to go for remote server (lookup speedy trading servers here on FIO) and a cheaper laptop. Remote sessions are not demanding, plus their VPN gives you much more reliable connection to the exchange compared to home internet. ''
sam028 , Speedy Trading Servers gave an FIO webinar in 2017 if interested: ''Dedicated Trading Servers (+VPS/VM) - Advantages/Disadvantages w/Speedy Trading Servers''