Beryl 1300 Azire VPN does not connect to Coffee shop

It doesn’t connect to coffee shop wifi. Neither does it open the portal. When connect to another type of wifi, as in a portable hotspot it connects at horrible speeds. Is it possible that the coffee shop ISP prohibits use of VPN? Honestly, I need 100mbsp speeds, the best I can get is mid to low teens using VPN. I opt for wireguard. OpenVPN is even slower.

You can try the method in the link first