It's quite simple; the volume traded in that interval.

SMA (Simple Moving Average) is a smoothing line that shows the average value over the last N intervals. For Trade Volume, an SMA(7) at a given point is the average volume of the previous 7 intervals. Smaller SMAs (e.g., 2–5) react faster but are noisier; larger SMAs (e.g., 14–30) are smoother and highlight the broader trend in activity.

EMA (Exponential Moving Average) is a smoothing line that shows the average value over the last N intervals, but it gives more weight to recent data. That makes it react faster to changes than an SMA. For Trade Volume, an EMA(7) at a given point is a weighted average of the previous 7 intervals, where the most recent intervals influence the result the most. Smaller EMAs (e.g., 2–5) react very quickly but can be jumpy; larger EMAs (e.g., 14–30) are smoother and better at showing the broader trend in activity.

These lines show Support (green) and Resistance (red).

Support is a price area where strong buying interest exists, which can slow down or stop price drops. (e.g. someone put up a large buy order that takes quite some time to be fulfilled)

Resistance is a price area where strong selling interest exists, which can slow down or stop price increases. (e.g. someone put up a large sell order that takes quite some time to be sold)

Prices can still break through these level, they simply mark areas where price reactions are more likely.

The Transactions are pulled every 10 seconds. There is fairly low volume of transactions so there is a high chance that the current graph doesnt change.

Support and Resistance are pulled once a minute.

In other words;Refreshing 100 times per second doesn't give you any advantage!

... ist ein kek!