Hello guys I need your kind help on the following questions

1- I bought an otg cable and found that it keeps disconnecting a lot, like when I connect a usb hard drive, or mouse, or xbox controller it keep every now and then disconnecting,

2- the sound volume is really low , especially when I play music

3- is there a software that can tell me about lenovo driver or software updates

4- when i press the power buttom to turn off the display youtube disconnects, i was wondering if i can play youtube while display is off, as I like to listen to youtube sometimes and don't care about the screen to be on

kindly please tell me in
detail as I am still new to windows tablets especially drivers and software