I did some additional testing and it really seems like something here is amiss with regards to hardware acceleration. I used this site to test WebGL: WebGL Blobs
With this I see a similarly high cpu usage as well. I’ll report this to our development team to look into.
As a suggestion from muy side, a GPU profiling tool in TorizonCore would simplify dramatically this kind of analysis.
Unfortunately this is a bit difficult since the GPU and the technology around it is proprietary to NXP. NXP does provide some kind of gpu tooling as seen here: GitHub - nxp-imx/imx-gputop: i.MX GPU Performance Tool
Though keep in mind this is provided by NXP and we’ve done no testing with this tool at the moment.
Best Regards,
Jeremias