try and fix high cpu usage

src/ws/crud.js

@@ -92,13 +92,13 @@ const streamFns = {
     return await streams.find().populate('event').populate({
       path: 'matches',
       populate: [{ path: 'orange' }, { path: 'blue' }],
-    }).populate('casters').populate('hosts').exec()
+    }).populate('casters').populate('hosts').lean().exec()
   },
   getById: async (id) => {
     return await streams.findById(id).populate('event').populate({
       path: 'matches',
       populate: [{ path: 'orange' }, { path: 'blue' }],
-    }).populate('casters').populate('hosts').exec()
+    }).populate('casters').populate('hosts').lean().exec()
   },
   update: async(id, data) => {
     return await streams.findByIdAndUpdate(id, data).exec()