Preview 4K in Camtasia is not smooth – Solution

One big problem of Camtasia is the preview of the 4K. It is not smooth, and you only see a couple of frames. It is tough to edit.

When I create a video with my GoPro, I am most of the time shooting in 4K even though the videos will be made in 1920×1080. This way, it is easier to zoom in or cut the edges.

Graphic Settings

Here are the details of my video.

GoPro Video Detail

To ensure Camtasia has the best Hardware Acceleration, go to Preferences / Advanced and select the correct Hardware Acceleration.

Camtasia Hardware settings

Even with this setting, the preview is still not smooth, but at least the rendering is getting faster.

Another setting you will have to do manually is a Windows setting.
Goto Settings / Display / Graphics Settings

Windows Settings

Select Desktop App [1] and browse for the Camtasia executable file when you are in the Graphics settings. [2]
When this is selected, click on option [3].

Windows Settings

Make sure the High performance is selected. This is NOT a default setting.

Windows Settings

Even though with those settings, the preview of a 4K file in Camtasia is far from smooth.


Of course, you can lower the resolution of the recording, but we don’t want to do that.
The best solution is to create a Proxy Video within Camtasia.
Select a video.

Without Proxy Video

Right-click on it and go to Proxy Video. Now select Create Proxy Video

Create Proxy Video

Depending on the size of the video, this will take a couple of seconds. You will see a status bar during the creation of the proxy video.

Proxy is creating

You will see a yellowish dot when the creation of a proxy video is finished.

Proxy Video

Now it is easy to edit the video and do all kinds of things. The preview of the 4K video is now smooth.

Delete the Proxy Video

There are two methods of deleting the proxy video:

Select the video, right-click and select Delete proxy Video.

Delete Proxy Video

If you have a lot of proxy videos, you can go to Preferences / Advanced

Delete all Proxy videos settings

And here is a setting to Delete All Proxy Videos.

Delete All Proxy Videos

I am not sponsored in any way to create this blog.
Here is the site of Camtasia.


  1. Pawel Machala

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