This depends on the type of speech or language disorder your child suffers from. If the child has difficulty in producing sounds or saying words correctly (articulation disorder), this could hamper their academic performance and social interaction. If it’s stuttering or interrupted speech that is the primary problem (fluency disorders) this could have more of a social issue than an academic one.
If the child has problems with pitch, volume or quality of their voice, this could potentially distract listeners as well as cause your child pain or discomfort. If the child has receptive difficulties as well in processing and understanding language, they could suffer academically and socially. Some may also have communication issues such as attention, perception, regulation, organization, problem solving etc.