Bulma vs Farnese de Vandimion: who would win?

Farnese de Vandimion favored — Slight edge (~55%)

Bulma · Dragon Ball · Base

Tier
10-B, up to 9-C
Attack Potency
Human Level, up to Street Level
Speed
Average Human, up to Supersonic
Durability
Street Level, up to Wall Level

Farnese de Vandimion · Berserk · Base

Tier
9-C, up to HIGH 7-A
Attack Potency
Street Level, up to Large Mountain Level
Speed
Peak Human, up to Speed Of Light
Durability
Human Level

A heuristic estimate from normalized VS Battles Wiki stats: tier, attack potency, speed and durability.