ent: fullscreenButton,
            where: 'top-right'
          });
        } else {
          fullscreenButton.className = 'standalone-fullscreen-button';
          document.body.appendChild(fullscreenButton);
        }
      }

      vm.setTurboMode(true);
      if (vm.setInterpolation) vm.setInterpolation(false);
      if (vm.setFramerate) vm.setFramerate(30);
      if (vm.renderer.setUseHighQualityRender) vm.renderer.setUseHighQualityRender(false);
      if (vm.setRuntimeOptions) vm.setRuntimeOptions({
