To answer my own question for those that may be interested.
Have used a VPS for past week. 2gb Ram, 2 cpus, windows 2016, single implemenation of MT4 plus memory intensive EA.
Performance very good, easy to set up, transfer files etc. I access vps from mac desktop, laptop and have tried ipad, all easy to use via microsft remote access app.
No performance issues although supplier had an emergency upgrade at midnight one night and needed to restart server. Killed my EA and I would have lost money instead of making a profit if I had been using live account fortunately I am still trialing demo account.