I use 000webhost from two years with couple websites. One of them are very very slowly with often server issues. Website works under WordPress. This is very simple portfolio - https://informatykgorlice.tk
Can anyone told me why this website is so slowly and unstabilished and what i can do to imporove it?
Your website is not very fast, but not that slow either. If you are only using it for a portofolio(can’t tell as it’s in polish or some language I don’t understand), wordpress is an overkill.