@brvnogit - Try this for your read-only mount (batch file)
@echo off
title Rclone Mount READ ONLY
D:\Programs\Rclone\rclone mount --allow-other --attr-timeout 960h --buffer-size 128M --dir-cache-time 960h --poll-interval 10s --rc --read-only --timeout 1h -v Google_Drive_Crypt: G:
pause
Replace the directory with wherever your rclone.exe is, and also change the name of the drive to whatever you named yours. Then pick a drive letter (I use G:). Thanks to @Animosity022 for all the testing. This is as fast and reliable as it can be. Note the --rc, which is necessary to run the next batch file:
@echo off
title Rclone Prime
D:\Programs\Rclone\rclone rc vfs/refresh -v --fast-list recursive=true
pause
I now use this to prime the mount after I make changes to it (copy content). It is incredibly fast.
That's it. If there are no issues with the mount, and you don't feel like updating Rclone every day, this will keep it up and running for 960 hours. After that, the the cache expires, and you simply run the second batch file again. Feel free to change 960h to whatever. In the end it doesn't matter much, because priming is so damn fast now.
Hope that all makes sense 