One way to come up with effective copy is to think about it in three components: promise, proof, cost.
Most copy doesn't promise anything, isn't believable, and sometimes doesn't even contain the product's price. It's not surprising that people hate advertising.
Copy that merely makes claims rarely connects with customers because every product claims to be faster, easier, simpler, performant, and next-generation. Grandiose statements say nothing and erode credibility.
Instead of describing the product from your perspective, think about the customer's view: if they buy, what will change for them?
If I buy what you're selling, what will be different? If nothing will be different, why should I spend my time or money?
All successful products involve change for the customer, and the most enticing promises are about transformative change. (For example, weight loss products and their copy promise a changed life. Unsurprisingly, this pitch is effective.)