Cryptomator is buggy and cannot handle read-only files atm. For a Windows-User it is also very annoying (and it took me more than an hour to adjust my data) that it is case-sensitive (and this would be for me a no-go).
But here are the test results:
Cryptomator (filename encryption enabled, output in the vault) : 0:50 min
Cryptomator (filename encryption enabled, output on normal disc) : 0:40 min
The speed is similar to BC1 (when data stays in the vault).
I can use BC1 still for some months. But with Windows 10 I have to change it.
Newer computer will be faster. But neither Cryptomator nor Boxcryptor 2 are the tools which could replace BC1 atm. This is very sad.
And the reply of the support does not give me much hope that the performance will be increased:
If the setting doesn't help much, there's probably nothing more we can do here.
I'm sorry I can't give you a better answer here.