Budget each session as a fixed amount
Deciding how long to play Fire Strike 2 means accepting that the bonus cannot be timed. How often the FireStrike Bonus or the free spins arrive is not known in advance. Every spin is random, so no session result can be predicted, whatever the RTP. The stated RTP describes the long run, not the next hour at the reels.
Checking which RTP version is running means opening the game rules before you stake. Only the game rules show that version, so a figure seen elsewhere may not match the one in play. The Fire Strike series includes another RTP version, so read the rules for the title you have open.
Weighing the top prize against your stake starts with the cap. The maximum win is a ceiling that very few spins reach, and the free spins round ends early once it is hit. Read the figure as the limit the game can pay, never as an expectation for any session.