I will optimize performance fast and fix bugs, code review in unity and unreal engine

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grealishmuller
G
grealishmuller
Grealish Muller

About this gig

Is your Unity or Unreal Engine 5 project suffering from bugs, crashes, poor performance, or unoptimized code?


I am Muller, professional in identifying, fix, and optimize your game to improve stability, performance, and overall gameplay experience. Whether you're developing a 2D, 3D, mobile, PC, or multiplayer game, I'll help ensure your project runs smoothly and efficiently.


What I can fix

  • Fix gameplay bugs and logic errors
  • Resolve C# (Unity) and C++/Blueprint (UE5) issues
  • Debug crashes, exceptions, and compile errors
  • Optimize CPU, GPU, and memory usage
  • Improve FPS and reduce lag or stuttering
  • Optimize UI, animations, and game systems
  • Review and refactor messy or inefficient code
  • Optimize AI, pathfinding, and physics
  • Improve loading times and scene performance
  • Fix multiplayer/network synchronization issues
  • Identify bottlenecks using Unity Profiler or Unreal Insights
  • Clean, organized, and maintainable code


Why Choose Me?

  • Experienced in Unity and Unreal Engine 5
  • Professional debugging and optimization workflow
  • Fast communication and regular progress updates
  • Clean, scalable, and well-documented code
  • Support for 2D, 3D, VR, AR, and multiplayer projects
  • Source code 


Get to know Grealish Muller

Grealish Muller

PROFESSIONAL 2D AND 3D UNITY AND UNREAL ENGINE GAME DEVELOPER

  • FromColombia
  • Member sinceJun 2026
  • Avg. response time1 hour
  • Languages

    English, Spanish, French
I am Grealish Muller, An expert 2d and 3d Online Multiplayer game developer with vast experience. I am passionate and experienced game developer specializing in creating high-quality 2D and 3D games using both Unity and Unreal Engine. I help transform ideas into engaging, polished, and optimized gaming experiences for PC, mobile, web, and multiplayer platforms. With expertise in gameplay programming, level design, UI/UX, multiplayer systems, optimization, and bug fixing, I can handle projects from concept and prototyping to full game development and deployment.

Other Game Development Services I Offer