Are you exporting to h.264? Try rendering to a master file in a intermediate codec like ProRes, Cineform or DNxHR. Rendering to h.264 involves referencing multiple frames to create the intermediate frames. When those frames have to be rendered first it adds an extra drain on resources, particularly memory.
Is the computer hitting the limits of available ...
The easiest way to do this would be to get a graphic tablet (like a Wacom tablet or a cheaper alternative) and record the screen as you write on a drawing program such as gimp, illustrator, Photoshop, paint.net, etc. with a recording program such as OBS. You can set up custom pens that use the speed, angle, pressure, etc. of your drawing to imitate the look ...
In most cases, drawing-pads are usually used. However, you can draw on paper in a light-tent and imitate the motion of pens and brushes over the paper in post. This will be a more difficult option though as it takes much more time in post.
Do you want to delete footages, which you didn't use in Premiere or you even didn't import them in Premiere?
In first case I don't know how to delete them.
In second case I think that you can look at the names of cache files, which premiere have created, then open program like "Beyond Compare", compare "video folder" with "cache folder" by names. And then ...
If you aren't adverse to using a terminal to extract it, FFmpeg is a very good tool that you can use. The command that you'd want to run in ffmpeg -i [input file name here] -c:a copy -vn -sn [output file name here].
-c:a copy: This argument copies the audio stream of the file.
-vn: This argument informs FFmpeg to not account for any video streams.
-sn: This ...
When using sound for speech-to-text, the quality is actually not very important. You can extract audio using ffmpeg, After Effects, Premiere, Nuke, Resolve or any editing software you like. Load in the clip, export again but as a .wav. Boom, you have only the sound.
Since the advent of HTML5 you can do this with a standard webpage that contains multiple elements, with no special software required. This will embed a video in a page that any modern browser can see.
<video width="320" height="240" controls>
<source src="movie.mp4" type="video/mp4">
<source src="movie.ogg" type="video/ogg">
I think you might want to read this article, it will probably contain the answer you are looking for:
You can use Premiere Pro or similar video editing software and plugin Flicker Free from Digital Anarchy with one of the preset.
Result of plugin work
Settings of the plugin in my case
Also I know some other methods but they are poorer and harder.