Potato introduced widely a century earlier

Much of Europe did not accept the potato until the end of the Thirty Years War when underground crops were harder to find and destroy. As a result populations in Germany and Central Europe expanded notably. What if the potato were introduced successfully a century earlier from Peru? Would Spain or the Netherlands or Germany experience such population growth earlier and could this result in novel developments as a result? Or would a blight potentially cause a massive famine and early exodus to the New World?
Late blight was likely introduced only once to Europe, since until recently there was only one strain of blight which was unable to reproduce sexually. The disease most likely came in from a batch of infected tubers but because there are so many potential ways that the introduction can be butterflied away, the blight may come earlier, later, or not at all.
 
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