Candle data loading

Candle data initial loading speed issues, and when changing TFs.

Please speed up the candle plotting part, many times the chart just freezes up until all data has been loaded, this makes it impossible to see what the price is doing. At least the “order module” part is still accessible.

Suggestion: until the speed gets better, not to blur the chart, let the chart to plot the candles from the data already present and keep plotting data as it backfills, but do not block/blur out