Ever since consuming the Blood Bone Spirit Flower and promoting Huogang Xuangong to the detailed stage, Han Yi's cultivation speed hasn't been much slower than when he was at the seventh layer of Qi Cultivation Stage.
When referring to speed here, it means the progression.
During his Qi Cultivation Seventh Layer period, he closed off for two and a half years, from 43/100, increased to 100/100. In this process, the first half was slow, and the second half increased with the detailed stage of the cultivation method.
After he returned to the Azure Dragon Peak from Daofu City and had cultivated for three years, roughly speaking, about a year was spent on promoting realms, and this year, from 8/100, increased to 28/100, suggesting a 20% progression.
