[open] xpyriment backend seems slow
During teaching, the xpyriment backend seems terribly slow on the university's PC's. I always thought this to be because of the pc's themselves (terribly slow) and the running from USB of OpenSesame Portable. Recently, however, I have been trying out some stuff on my laptop as well and I run into the same problem: the xpyriment backend seems very slow compared to the other backends. This is something to worry about, as my laptop is really quite fast.
Examples of slowness: form plugins (any of them) and even a simple while loop for continuously clearing and updating the screen lags a lot! (for an example, see here)
Do you notice any differences between the backends? If not: what could I be doing wrong. If so: what should be done with the xpyriment backend?
Thanks in advance!