IgorB, thanks for proofreading and providing feedback. Here are 4 revised sections (changed part is in the color red):
In addition you can modify values for that codec by clicking on the wrench icon. Once you have created a
scaled proxy file, it will be reused and does not have to be created again as long as you do not change certain parameters. This saves a lot of CPU time.
But for old computers checking Rescaled to project size is not recommended; again due to requiring more CPU.
A workaround is needed for that - you can see an example in the tutorial https://www.youtube.com/watch?v=YCqJnHLmj6s at 1m:56s where the Snapshot feature is used to "convert" the white line to a PNG. Or another workaround is to use Inkscape to create a title and export it to PNG that you load instead of using the Title plugin.
A good idea is to record this information in a README file about your project where you make a note of your Proxy settings for that project. This is especially important because some Projects may use different Proxy settings and if you load a project where the Proxy is set and disabled, it could use a different setting because you changed the Proxy settings in a project you were working on before. If in that Project its proxy files were not deleted and you want to reuse them to save time, unfortunately they will be created again because the proxy settings have changed.