Choose default CPU cores or priority for rendering

  • 2
  • Question
  • Updated 4 months ago
By default, Camtasia 9 uses all available CPUs/cores for rendering, and does so with the process's priority set to "Normal".

If you happen to need your PC to do other CPU hungry processing, in real time, then that other program is going to suffer during rendering.  Windows will multitask.  But it is not the same as having an idle CPU available for other processing.

Using taskmgr.exe, these settings can be changed.  But they will last only as long as you do not close Camtasia.

Is there a way to set these options to a different default?
For example, tell Camtasia's rendering process to not access CPU 0, or to run at "Below Normal" priority.

I did not see such options on any of Camtasia's menus.

Are there any command line options, for starting Camtasia with non standard process priorities?

Thank you.
Photo of craig


  • 14 Posts
  • 6 Reply Likes

Posted 2 years ago

  • 2
Photo of santosomar


  • 3 Posts
  • 0 Reply Likes
I am also experiencing the same issue in an iMac Pro with 18 cores and 128GB of RAM. The system is only using one core.

I am using Camtasia 2018.0.7

Photo of burkeym


  • 1 Post
  • 0 Reply Likes
Like a fool, I keep paying money to upgrade Camtasia because people keep saying that newer versions are able to use the cores. For a 6 core Ryzen, there is still no change- Camtasia 2019 will use about 40% of the processing power at maximum.  Time to find a new editing software.