java very slow on 9.0

It is a problem with Java2 on SuSE 9.0. It is really slow and takes a huge amount of memory. Tried in Konqueror - takes about 6 minutes to open an simple java applet, memory usage by java_vm is about 230 MB (i have 256 MB ram and 512 swap). With mozilla, firebird, galeon - takes 7-10 minutes, sometimes forever... memory usage the same. With Opera - opens in 2-3 seconds, memory usage almost the same. Have tried with many different java installations, no difference. ain