Max rows drawn per frame (virtualization cap).
OptionaltickPrice-dependent ticks. When set, every row is a price the instrument can
trade at in its own band, groupBy counts whole ticks of that band (a
fraction rounds down), and tickSize is unused. Absent or null, rows step
by tickSize.
Strip width in media px.
Group every N ticks into one row (deep-book aggregation). With a
tickSchedule, N is whole ticks of each band: 2.5 groups by 2.