Is there a faster way to get rose leafs sprouting?
Not really. The timing has to be just right to get them to sprout at all. Also if you bought rose seeds on-line be aware that many of them are unfortunately a scam to get your money.... Some are weed or other plant seeds while some are just small clumps of organic matter that will never do anything. Here is a link to an article about starting roses from seed for you: https://www.gardeningknowhow.com/ornamental/flowers/roses/growing-roses-from-seed.htm