Hello,
Could you, please, explain your question in more detail? I see that you use “Exo-Black” font for the product titles https://gyazo.com/08f2c0ef817a07235bc237e60293b88c It should be custom font uploaded from XStore > Custom fonts. If you want to change font go to Theme Options > Typography > change the font for body and for the headings according to your needs.
Regards