That worked for mee too. I just added a slight modification due to the version number and ran from comd line:

SweetHome3D-5.7-windows.exe /j3d.version=1.5.2 /os.arch=x86

in order to reinstall from scratch my new SH3D version. While my previous 5.7 plain installation did terribly slow down on 3D rendering, this installation mode competely fixed any issue.

I operate on a laptop with Windows 10 home 64 bit and a 3 years old Intel core i7 cpu.
I also noticed that after reintalling SH3D, it reserves just one third RAM than before.

So, tx a lot!