Performance extremly slow on windows

Hi, I am using the latest Meld Version on Windows and it's extremely slow. First startup takes approx. 20 seconds and every new window another 5-10. Even opening a new Comparison tab takes a few seconds. On the other hand if I'm using meld on the exact same machine under linux it's extremely fast (opening it takes a fraction of a second).

I'm pretty sure that the real problem is that meld uses gtk and brings its own python environment under windows but is there any way to make it fast enough to be used on a daily basis?

Thank you!