Avoid time change in Performance Mode

[Buyaicia]

Hi,

In performance mode, I wish to have the posibility to disable any time change while playing any file.

While the files are playing I do not whish to be able to move the play position of the file.
It could be very usefull to have a check box to disable it in "Perfonmance Mode" in "Display options"

Thanks again for this great tool.
Regards,
Lluís Vilarrasa