You must use browser hardware acceleration to assemble the Mech

How to turn on hardware acceleration in Chrome

In Chrome settings, go to 'System' and verify that 'Use hardware acceleration when available' is selected. You can also go to this setting by searching for 'Hardware acceleration' in the settings. After changing these settings, restart the browser.

How to turn on hardware acceleration in Brave

In Brave settings, go to 'System' and verify that 'Use hardware acceleration when available' is selected. After changing these settings, restart the browser.

How to turn on hardware acceleration in Firefox

In the Performance section of the settings, make sure that 'Use recommended performance settings' is selected. Alternatively, if you do not want to use the recommended performance settings, make sure 'Use hardware acceleration if available' is selected. After changing these settings, restart the browser.