Right now, he is actually multitasking, comprehending the Laws while also not forgetting to absorb spiritual energy.
And for him, this is not much of a pressure, or rather, many high-level beings have such an ability; it's not uncommon to multitask.
Breaking through in realm is not something that can be accomplished overnight.
Some people may find it very smooth, breaking through naturally after only a few years of seclusion; but others, after closing themselves for thousands or tens of thousands of years, see no improvement in their realm at all.
As for which category Li Zhirui falls into? Let's wait and see.
...
Meanwhile, within the Li family of Mount Wanxian.
Because of Li Zhirui's nearly last words, it had considerable impact on Li Zhixuan, Jiang Fengwu, Da Qing, and others, and put a lot of pressure on them, pushing each person into seclusion and training arduously.
