In our app, some queries take around 12 seconds to download response data, therefore we want to reduce query times by querying for only necessary fields.
There is "fields" query parameter for "point-values/latest" API. Is there any similar way or a workaround to query fields for APIs in below:

http://[host]:[port]/rest/latest/events
http://[host]:[port]/rest/v3/data-points
http://[host]:[port]/rest/v3/realtime

Also if you have any advice about reducing query times I'd love to hear it.