About

The person doing the work is the person you talk to.

Rendrify is a founder-led Unreal Engine performance optimization practice, operated by Render Technologies AB in Sweden.

Lucas Karlsson

I'm Lucas Karlsson, the technical artist behind Rendrify. I work directly with developers to diagnose and resolve Unreal Engine performance problems.

My work covers frame time and stutter: GPU and CPU bottlenecks, Game Thread cost, hitches, traversal stutter and shader compilation stalls, as well as Lumen, Nanite, VRAM and memory budgets, asset and texture optimization, streaming and loading. I use Unreal Insights and before/after measurements to validate changes, in UE4 and UE5.

I don't take on gameplay or feature programming. That is a deliberate line, so the attention stays on performance.

How Rendrify works

  1. 01

    Measure first

    Findings are ranked by measured cost on agreed builds and hardware, not by habit or guesswork.

  2. 02

    Scope in writing

    Effort, deliverables and price are agreed before work starts. No open-ended billing.

  3. 03

    Honest limits

    No guaranteed frame rates. If a problem is not a performance one, you will hear that directly.

  4. 04

    Confidential by default

    NDA-friendly. Client work is only referenced publicly with approval.

Company

Brand
Rendrify
Legal entity
Render Technologies AB
Country
Sweden
Contact
lucas@rendrify.com

Have a frame-time problem?

Describe it in a few sentences. You will get a suggested next step and, if it fits, a written scope.

Discuss Your Performance Issue