If you mean the bright long spikes coming from bright objects, those are diffraction spikes and are expected on any scope that has any obstruction between the lens and the image sensor. Normally you see 4 of them on consumer telescopes where one of the mirrors is suspended at the front of the scope by 4 supports. If they’re not meant to be as prominent as they are on the James Webb telescope, some part of the assembly is probably mounted slightly farther away than intended, but near enough to still allow refocusing.