Re: No Sound and Cut-scenes/Cinematics play too fast.
Check under sound devices in Win10 configuration and see if the Realtek or heatset sound device of choice is selected as main output device.
if not:
After reinstalling a Windows Operating System it's important to reinstall a few components manually afterwards. Also note that some driver updates will not work until you have installed all Windows updates on your system and have rebooted when asked.
If you will visit the page of your laptop supplier and enter your laptop model number(s) you might be able to find a list made for your OS as well. If not you cannot always (preference) get the drivers from other sources on the web:
-LAN (not in your HW list) and or WiFi drivers
-Integrated Chipset Device Software Driver
if not:
Also try running the game from the Net-adapter rather then the built in battery and see if it helps also if possible try a wired Network connection rather then a WiFi network. Good luck!