Adderley’s results include a hard-fought but very impressive 11-4, 9-11, 11-9 win in the mixed doubles against Australia pair Ryan Cuskelly and Rachael Grinham, who were one of the pre-tournament favourites.
The 21-year-old and mixed partner Rory Stewart have also defeated opponents from Singapore and Malaysia to top Group C.
She said: “Coming into the tournament, we awnted to take it game by game. We know that on our day we can beat anyone.”
In the women’s doubles, Adderley and Lisa Aitken crushed South African Alexandra Fuller and Cheyna Wood in their Group A opener.
Adderley and Aitken are the sole Scottish entry in the women’s draw and will play England’s Georgina Kennedy and Lucy Turmel.
Kempsell, 28, is playing with Alan Clyne in the men’s doubles and they began their group E campaign with a victory over South Africa’s Jean-Pierre Brits and Christo Potgieter.
The event runs until Saturday at Scotstoun Leisure Centre in Glasgow.