Rich needs to stabilise his PS5 Internet connection to enable him to play his PS5 on his Steam Deck using Chiaki For Deck. The answer is to use an additional Powerline adapter on Rich's existing TP Link Powerline Network and then connect the Powerline via ethernet cable to his PS5. Hopefully this creates a stable internet connection to improve the performance on Chiaki 4 Deck.
Amazon Affiliate Link For TP Link Powerline Adapter: