Do vpns work on roblox?

So currently, I’m lagging a lot on roblox, and I wanna use a vpn to make my ping better. But I tried using a vpn (expressvpn to be specific) and it didn’t make my ping lower. Is there anyway to make it work or do VPNs just not work on games?

I don’t think VPNS work on games. However, they work on websites. Maybe do some research, if they’re are others ways