MATLAB toolboxes and Simulink freeze and eat up memory, crashing computer. Plz advise

I have MATLAB 2020b with a Student Licence with several toolboxes, maily on signal, antenna, and communication systems.

I haven't tested all toolboxes, but my problem began when using the Antenna Designer and Antenna Array toolboxes. I can't change parameters, see graphs, mainly anything with these apps. While monitoring with the Resource Manager of Windows 7, the memory allocation for MATLAB is normally below 2 GBs. When applying changes on parameters the memory shoots up to 6-7 GBs and stays there forever. If the parameter change doesn't freezes it, any usage of plotting tools shoots up the memory to 12-16 GBs and stays there forever, lagging and crashing my computer.

The same happens sometimes with Simulink.

Actions taken to try and fix:

1. Stopped all non-essential processes, closed all other programs trom the Task Manager ----> no fix
2. Re-installed MATLAB ----> no fix

My computer is a Dell Inspirion 15 5000 Series, Intel i7, 16 GB RAM, Windows 7 Pro

[Jovanny Ramos Torres]

    GraphicsRenderer: 'OpenGL Hardware'
              Vendor: 'ATI Technologies Inc.'
             Version: '4.4.13084 Compatibility Profile Context 14.301.1002.1001'
      RendererDevice: 'AMD Radeon R7 M270'
             Details: [1×1 struct]

[Jovanny Ramos Torres]

I've used the OpenGL functions for hardware and software for rendering, and didn't fixed it