Ability to increase the limit of records per API request

Currently there is a limit of 50 records per request on an API object. In cases where accounts have 100,000 or more contacts or records on an object, getting this data with pagination takes a very long time, even if one is only getting a couple of fields on each record.

It could be based on a byte limit per record. Eg. each call can be 20kb and so can have as many records in it up to that limit,

It could be a field/record limit, eg. If you want all fields the limit is 50 but if you only request 1-10 fields the limit is 1000.

Otherwise just having the ability for an API key to have special powers to be upgraded to get more records on request from support would be helpful too.