wow. What's the total upload speed at that moment?
My internet doesn't go above 120KB/s (which is slightly problematic). HFS doesn't lag based on total upload speed but rather number of concurrent connections. I can easily get over 8MB/s with no lag on my local LAN if no one else is connected.
That being said there is a total of ~200 macros that get executed under [request] according to the macro-log and 542 items in my VFS
Do you think the fact that it's under a VM has much effect? Every other application seems to run the same speed...
BTW what I said before wasn't totally accurate.... here's what I measured: >4 downloads makes the GUI slower, >10 downloads makes the GUI unusable by taking >10 seconds to show anything, >12 downloads makes a page take longer than 10 seconds to load and >15-20 downloads will make Firefox time out when loading a page. HFS has only been knocked offline once for me (completely unresponsive in GUI and over HTTP) and it had around 30 (concurrent) downloads.
I also tried disabling browsing compression but it didn't seem to have an effect.