There is a difference in the data feeds of Gain API and DXfeed which is apparent when working with Bookmap.
DXFeed offered by bookmap shows all price/tick levels live, I would cal that a total view…
The standard data feed for Gain API only shows 10 levels from the current tick up/down which limits all of the levels being displayed in Bookmap.
I wonder if there is a setting in the Gain feed that can match its data to DxFeed.
You can see the diference here one is of DxFeed, the other of Gain feed