1) Not significantly so on such short time. French navy had several problems of management and lack of vessels, that couldn't be well resolved without making occupied or sattelized countries participating to the cost. Not that Napoleonian navy was objectively bad, it was the second navy of its time : but then again, there was the Royal Navy way further ahead. Ressource-wize it would have asked a whole freaking lot to even be able to roughly match the basic necessities.
2) Louisiana Purchase is bound to happen at this point : mentioning only quickly the Haitian Revolution was already too far and too much for Napoleon's naval capacities IOTL, its likely loss is only the cherry on the cake of a poor American policy (arguably more coming from geopolitical situation than bad management). Jefferson and most American elite wanted New Orleans, already blockaded it in 1802 and made pretty much crystal clear that they wouldn't mind siding with UK.
At this point, it was about cutting up losses, not some transcontinental policy.
3) Spain was a powder keg waiting to explode. The huge contradictions of an alliance between post-revolutionaries and autocrats, hopes of the Spanish population and rise of nationalism...A French intervention (more or less important, maybe not equivalent to IOTL one) is very likely in the decade.