It is easier to run the simulator on your PC if it is located closest to the root directory of your harddrive.
The simulator is running constantly in the background even while you're not using it when the simulator is stopped and the "RUN / Stop" button in the upper right corner is red. Apparently, the simulator has to travel through the URL of the simulator's location every time it performs any function even when running in the background.
And if the URL is a long one, whether or not it is local or remote, then I find that there is a significant time-lag while waiting for the simulator to finish each process before it accepts acting on any new ones.
For example...
I place my simulator's top-level directory (folder) immediately at C:\ on my harddrive. So, the URL for accessing its root page to load the simulator into my browser is...
file:///C:/PRIVSIM4no/circuitjs.html
This significantly speeds it up. This is why I make my remote access URL also very short...
http://vinyasi.info/privsim
http://vinyasi.info/realsim
http://vinyasi.info/stepsim
http://vinyasi.info/ne
PRIVSIM4no.zip replaces REALSIM4nm.zip and pc-sim-falstad-vinyasi.zip and the circuitjs1-falstad-vinyasi*.zip series. These latter three packages will no longer be updated. I will no longer continue to update the parallel simulator of STEPSIM4kh.zip. And I will no longer update falstad-cts.zip and vinyasi-cts.zip.
PRIVSIM4no.zip and REALSIM4nm.zip have equivalent series resistance inside its inductors and capacitors. This condition renders capacitor resistance as negative resistance (called Mho, which is Ohm spelled backwards) and symbolized by an upside-down Omega from the Greek alphabet...
... while inductors, such as transformers and simple coils, exhibit normal (positive) resistance. Although the equivalent series resistance of capacitors is 10 milli ohms by default, you may temporarily alter this to whatever you want for each capacitor, but it cannot be saved nor exported. The calculation of equivalent series resistance for inductors is a complicated formula explained below...
STEPSIM4kh.zip has equivalent series resistance added to its inductors and capacitors making it similar to PRIVSIM4no.zip and REALSIM4nm.zip.