The problem with Poland is that we have very high taxes and very low salaries. The government tries to make an impression that the economy is booming and we're moving forward, but their own actions are slowing the economy down and making the country look like a bad place to invest.
I'll just give you a small example.
The income tax threshold in Poland is below $750 a year. (Greece has it somewhere around $5000 and other countries like France and UK even higher)
Now compare this to the existential minimum for a person ($150 a month), which is the threshold below which you are classified as living in poverty and can get money from the social services.
This means that a person who is qualified as extremely poor and has only $150 a month still breaks the income tax threshold in just 5 months (!) and will have to pay taxes.
It also means that an average American earns more in a month than a poor person in Poland makes in a year.