In-Game Settings:
Lower Graphics Settings: Adjust graphics settings within Apex Legends to lower quality and improve performance. Lower settings for effects, textures, and shadows can often provide a significant FPS boost.

Resolution Scaling: Reduce the resolution scaling factor if available. This lowers the rendering resolution while maintaining the UI clarity, which can improve FPS without drastically reducing visual quality.

Disable V-Sync: V-Sync synchronizes your FPS with your monitor's refresh rate, which can limit FPS. Disabling V-Sync may result in higher FPS, but it can also cause screen tearing.

Reduce FOV (Field of View): Lowering the FOV can increase performance by reducing the amount of the game world that needs to be rendered.

Disable Ambient Occlusion, Anti-Aliasing, and Motion Blur: These graphical effects can significantly impact performance. Disabling them may lead to higher FPS.

System Settings:
Update Graphics Drivers: Ensure that your graphics card drivers are up to date. Newer drivers often include performance optimizations for games like Apex Legends.

Close Background Applications: Close any unnecessary background applications and processes that may be consuming system resources.

Optimize Power Settings: Set your computer's power plan to "High Performance" to ensure maximum performance while playing games.

Monitor Temperatures: Monitor your CPU and GPU temperatures while playing. Overheating can lead to performance throttling. Ensure proper airflow and cooling for your system.

Optimize Launch Options (PC): In Origin, you can set launch options for Apex Legends. Right-click on Apex Legends in your game library, go to Game Properties, and add command-line arguments such as "-novid" to skip intro videos or "-dev" to enable developer mode (which can provide additional information for troubleshooting).

Additional Tips:
Disable Full-Screen Optimizations: Right-click on the Apex Legends shortcut, go to Properties > Compatibility, and check "Disable full-screen optimizations." This can sometimes improve performance.

Consider Overclocking: If you're comfortable with it and your hardware allows, overclocking your CPU or GPU can provide a performance boost. However, do so cautiously and ensure stability and proper cooling.

Optimize Network Settings: Ensure a stable internet connection and consider using a wired connection if possible to reduce latency and packet loss.

By applying these optimizations, you should be able to improve FPS and overall performance in Apex Legends on your system. Experiment with different settings to find the optimal balance between performance and visual quality for your hardware configuration.