Workbench very slow perf.

New to RDM, I'm trying to figure out if web workbench can be configure somehow to perform better, as right now is very very slow, presumably on the client side fetching data and rendering document objects, as the Jboss EAP 7.2 does seems very lightly loaded during rendering times (no swap used, cpu < 10%, no IO going on, no packet loss etc. on NIC)... A pageview takes minutes to render, making it totally unusable.

As alternative I'm considering trying Eclipce/RH Code Ready Studio with JBoss plugin and a remote Git repository and remote Jboss EAP server...

Any hints/advice appreciated, TIA