I am not sure how to calculate the maximum speed at which one can save data with the "File Scope" Block. But you can refer to the following article to know why there is missing data while logging.
So, If the buffer is too small and the model rate is too fast, the background task (which writes the memory buffer to disk) is not yet finished by the time the buffer fills up again. The Autorestart option may lead to a loss of data in such cases.
By increasing the Number of Samples, you can increase the size of the buffer, which means the buffer fills up less frequently. By increasing WriteSize, the background thread can write more data to the disk, hence it helps keep up with the data collection.
You can also switch off "Autorestart" to avoid this issue.
I hope this helps.
