why is ue4 Interface buttons unresponse ?

why is my interface options like file, edit, assests unresponsive or very slow responsive ?

What are the specs of your computer?

i will clarify further , sorry for the short question i am new to these forums, so i am running unreal 4.12.5 ,
and since i installed it their seems to be a weird bug with the interface buttons like (file, edit, windows…)
they seem to be unresponsive, but not completely though sometimes i takes 10 to 15 clicks for the option tab to open , i cant say it’s a slow response since other interface functions are working just fine

My computer specs: Hp, core i7 5500U cpu @ 2.40 GHz, 8 GB of RAM, and a nvidia Geforce 820M