welcome to knime and node description terribly slow unless using knime with root

Freshly installed on Ubuntu 14.04 stock build.

When starting knime under my regular user, the node descriptions take too low (2 or more minures) to refresh, while if I start knime under root, the node description is always updated in 1 or 2 seconds.

What should I fix in my installation?  I followed the instructions on the download page.

Thanks.

Are you using 14.04 or 16.04? We have never seen this behaviour under 14.04 but 16.04 has a bug in the gtk libraries that makes the whole GUI really slow (https://tech.knime.org/forum/knime-general/ubuntu-1604-slow-performance).