Looking for tips to improving the videos on the channel.

[TheDeKayGaming]

I am currently working on trying to improve my channel and the quality of the videos. I am trying to increase the subscriber rate of this channel before starting a different channel on a different set of games. Any tips and tricks to increase the quality would be appreciated. https://www.youtube.com/channel/UCNR-zlv1xuEjHz-5HSGek2w