It is safe to say that player can beat the UK in industry as many countries. At least USA, Russia, Germany, Austria, OE, France, Japan and China can do that even without very ahistorical expansions. AI is not that good in handling his economy and industry.
For starters human player should always enact good healthcare, because that is really important for the pop growth. Start collecting money for that from beginning, healthcare is actually ridiculously cheap. Also researching medicine tech early on is important, because that gives you population growth boost.
Internal migration can also be important. You shouldn't build factories in every single state, but only in the best states and let population migrate inside your country into those states you want to develope. Best states are those which have large starting population and good population growth rates.
AI has absolutely no idea about pop handling. Small non national pops as craftsmen and bigger national pops as clerks gives the best outcome.