# Unknown bottleneck in RHI or Render Thread in Insights

**URL:** <https://forums.unrealengine.com/t/unknown-bottleneck-in-rhi-or-render-thread-in-insights/2275467>\
**Category:** Debugging, Optimization, & Profiling\
**Tags:** Unreal-Insights, unreal-engine, Performance, Performance-Profiling, question\
**Created:** [January 13, 2025, 8:50pm UTC](https://forums.unrealengine.com/t/unknown-bottleneck-in-rhi-or-render-thread-in-insights/2275467 "2025-01-13T20:50:59Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![Ozonefreerun](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@Ozonefreerun](https://forums.unrealengine.com/u/Ozonefreerun)\
**Post date:** [January 13, 2025, 8:50pm UTC](https://forums.unrealengine.com/t/unknown-bottleneck-in-rhi-or-render-thread-in-insights/2275467/1 "2025-01-13T20:50:59Z")

</div>

![UnrealInsights_sjtJRlKz5H](https://d3kjluh73b9h9o.cloudfront.net/original/4X/4/b/6/4b6f68bd34725e9a64f52eaa2718f5e6cc92cfc7.png)  
Game I’m working on recently has lost ~10 ms on an average frame. I’ve been profiling and can’t figure out how to delve further into the problem. The RHI thread in particular is showing that it’s waiting for task for nearly the whole frame but the flame graph clearly shows things being executed in that time. Any help or ideas?