If an ordinary laptop won't cut it performance-wise you need to step up to a mobile workstation, and HP has several contenders in its ZBook range: late last year we looked at the ZBook 14u G4 and found that while it was robust, performance was disappointing.
Excellent pen and great pen configuration tools; Good keyboard; Solid build; Good performance; Solid kickstand
Moderate battery life; Disappointing audio; Expensive