Yes, surprisingly Slovakia shows high pressure and the Portuguese play lazily. They are probably very upset that Fernandes, due to his individual skill, tipped the scales in favor of Portugal and now despite the fact that Slovakia played better, Portugal are ahead. But in fact, this is a common picture when two teams of different classes play - I think that Portugal has the resources to speed up if the need arises, but for now they are playing in energy-saving mode.
A nice clean shot from Fernandes and he was able to beat the goalkeeper. Another game to add to the many he has been in and scored important goals when his team was under pressure.