its okay if you are a professional event MC and a DJ. the really good ones have particular skills, keeping momentum, not putting people to sleep, able to think quickly, very charismatic and engaging, etc. like really think of the times you have left a wedding (or event) and remember the MC, its only when they were good.
on the other hand if you dont actually have MC skills leave it to just the occasional announcement like everyone sit down, or its time for this and its time for that, and the yellow beetle has left their lights on, we have a lost four year old looking for their mum.