 Is it all mismatched? Have you got dodgy fonts that are hard to read? Is it really small fonts? Are you using poor quality pixelated images that feature Chinese branding or Chinese text? Have you just imported images from AliExpress or wherever it may be and it's broken English? Are you using dodgy colours like have a black background and red text? There are some occasions where that might work really well but for most people stick to a white background with black text. Is there no social proof behind the products people like to know they're buying from businesses which are established and trustworthy? And to do this you might want to make sure you include all the relevant contact information and so on and so forth.