# I dont know why paraview is not fluid when I mesh

**URL:** https://discourse.paraview.org/t/i-dont-know-why-paraview-is-not-fluid-when-i-mesh/17245
**Category:** ParaView Support
**Created:** [October 16, 2025, 3:46pm UTC](https://discourse.paraview.org/t/i-dont-know-why-paraview-is-not-fluid-when-i-mesh/17245 "2025-10-16T15:46:31Z")
**Posts on this page:** 2
**Page:** 1

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### Author: ![ZEYxTER](https://discourse.paraview.org/user_avatar/discourse.paraview.org/zeyxter/32/17098_2.png) [@ZEYxTER](https://discourse.paraview.org/u/ZEYxTER)
#### Post date: [October 16, 2025, 3:46pm UTC](https://discourse.paraview.org/t/i-dont-know-why-paraview-is-not-fluid-when-i-mesh/17245/1 "2025-10-16T15:46:31Z")

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I have a 3080 nvidia and i5 11600KF 32 Gb RAM and Ubuntu 22.04 and when following a course on openfoam v9 and going through the Ahmed body example, I see paraview on the tutorial having no lag and mine (with the exact same amount of cells) being very laggy and when I want to navigate it jumps frames. I do not know why but I suspect paraview is not using my GPU.

I have prompt AI to help and it recommended glxinfo | grep “OpenGL renderer” which outputs fine detecting my video card. I have paraview version 5.6.3.

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### Author: ![mwestphal](https://discourse.paraview.org/user_avatar/discourse.paraview.org/mwestphal/32/17_2.png) [@mwestphal](https://discourse.paraview.org/u/mwestphal)
#### Post date: [October 17, 2025, 8:04am UTC](https://discourse.paraview.org/t/i-dont-know-why-paraview-is-not-fluid-when-i-mesh/17245/2 "2025-10-17T08:04:19Z")

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> [@ZEYxTER](#):
>
> paraview version 5.6.3.

Update your ParaView version and check Help-\>About for the detected GPU info.