guessing this ^ is a worn sear, which was/is a common problem. Usually some swine sells the gun when this is coming on and either fitting a new mainspring or actually lubricating the gun stops it from cocking. Also look for worn cocking shoe or stretched pin holes on the linkage. Unlikely to be a worn fulrum point.
While the Tempest does not look as good as the earlier pistols, the trigger is more solid.