Slow performance when adding images

Is it only me?
While using Penpot on Chromium and adding image to layout (1000x1000px) the performance drops to the point where working further is impossible (unless I delete image). Is this a bug, or do I need to tweak something?

PC specs

SYS: Win 10 x64
RAM: 12 GB
CPU: Intel i5 4670K

Used browsers:

  • Firefox
  • Chromium
  • Desktop app


  • The browsers work in perma-incognito mode. I don’t want to store cookies, browser history .etc. It slows down my pc.
  • I checked in browsers to use hardware acceleration
  • Extensions used in browsers (uBlock Origin, Imagus, h264ify, FireShot, DarkReader


Hey, I also experience lagging and memory issues on my side using Firefox and chromium for some complex layouts.
I thought it was only due to my laptop limited 8GB RAM but maybe there’s more to explain it?