No! Only the "first" time!
When i close the browser for a few minutes, and open the web-interface again, it takes also a long time!
It seems to me, that it takes so long, to connect to the "lansweeper-server" (maybe wrong connection-informations?) and if the connection is up, the web-interface works fast ! Until a timeout-value cuts the connection (the next start -after a few minutes- of the webinterface, takes a long time)!