there are a bunch of similar recent threads in this forum on that same subject
The problem is... it depends. You could simply get a newer low-end laptop, and get away with low-end real-time encoding requirements, or you could get a upper-end expensive workstation class laptop (think heavy, powerful, and expensive) and still overload it (saying adding chroma-keying, a could of filters/effects, higher frame rate, etc). To do what your log lists, can most likely be done with a decent 5 yr old gaming laptop. The challenge is when your expectations increase, and you got a low-end system and now you are right back where you are now of wanting to do more than system capable of....
As for more general comments, see my general comments/reply (yesterday, iirc) on a laptop thread