Hello Jacpin,
What you can do is tool for another broker which provides 0.01 lot trading with indexes.
For example, i trade the Forex pairs and the Indexes in one broker, and the cryptocurrencies with another broker.
This way I feel safer a bit more and I use the low spreads in both.
Regarding the bars I remember Petko said in some of his videos that the more bars we use the less profit the EAs will have. So we need to look for this middle number of bars. Not sure now when it is 500k and not 200k where is the middle…
What do you mean that 200k bars make it slower, it should not?
Regards,