Logging far too slow since using remote clients

I started to deploy my test from my local Computer to virtual machines.

Locally, all worked fine. But on the virtual machine, nothing seemed to happen in TestExecute.

I installed TC there to see what was going on.

The Observation is that writing a single Log entry (Log.Message, Log.Event) takes e.g. 30s, 60 s or 90s. After having worked with the remote TC instance, my original local TC has got the same Problem.

When I suppress a log entry in Event handling using Logparams.Locked = true, no delay happens.

The Project Suite had been on a Network share before.

What I did is to Change the logging dir from the Network share to a local disk. I applied a UserVariable for it to cover variance on remote virtual machines.

I tried to remove the uservariable, remove Event handling, but nothing helped.

Logging from a keyword test works normally, without any delay.