Are you referring to:
VII. Conclusion
Under-shooting? If your crosshair gets stuck on the chest, increase your DPI by 10 or raise your "Red Dot" sensitivity. Conclusion real sensi ff exclusive
Lower ranges (150) are better for high-end (4GB+ RAM) devices. Pro Tips for Maximizing Your "Sensi" Are you referring to: VII
If you meant something else — double-check the spelling. Possibly "Real Sensi" as in cannabis-related media (Sensi Seeds), or "FF" as Final Fantasy? or "FF" as Final Fantasy?