Hi Lauro,
sorry for the delay, but rapidAPI did not send me any notification.
To understand if in a match in progress, both teams scored, or only one, just check the value:
result -> teamA->score->f
and
result -> teamB->score->f

(if 0 to 0 or N to 0)

If instead you want to know what percentage the teams have scored both (BTTS) you can find the data below:

result -> teamA->perf->btts
and
result -> teamB->perf->btts

Also if you want to know how many times a team scored in the past 5 games, you can check:

result -> teamA->perf->o_0_5_game
and
result -> teamB->perf->o_0_5_game

I remind you that you can check all the values of the response json (with its explanation)
from here :
https://info.soccerfootball.info/v1/live/live-full