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VisualVM GUI slow when monitoring host #470

@pflaska

Description

@pflaska

Describe the bug
A clear and concise description of what the bug is.

To Reproduce

  1. Go to Remote and add the remote host.
  2. Add JMX connection.
  3. Right-click on the host and Open.
  4. The host graph appears.
  5. Try to traverse nodes in Application, open the context menu.

Actual behavior
The monitoring works, but actions in the GUI are very slow. Things are much worse when you open monitoring on other hosts. (expect slow JMX).

Expected behavior
GUI should be responsive.

Desktop (please complete the following information):
Ubuntu 22.04.1 LTS \n \l
Linux 5.15.0-56-generic #62-Ubuntu SMP Tue Nov 22 19:54:14 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux

Java version "1.8.0_341"
Java(TM) SE Runtime Environment (build 1.8.0_341-b32)
Java HotSpot(TM) 64-Bit Server VM (build 25.341-b32, mixed mode)

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