Hello @Luna_Silverleaf, thank you for reaching out!
Could you please share some additional information in order for us to further assist you with this issue?
- PS4 Model
- Game installed to internal/external HDD or SSD
- Console connected through Wired or Wireless connection and its speed
- Is it stable playing other demanding games?
- Does it exhibit any signs of overheating?
Also, have you tried to rebuild the PS4 database?