Complex sentence: Vinnie is very hard-working, outspoken, and intelligent, but is also very selfish and a bigger opportunist than Rani Oberoi, though she always loses out when this side of her personality is shown.
Split into simpler sentences: Vinnie is very hard-working, outspoken, and intelligent. But she is also very selfish and a bigger opportunist than Rani Oberoi, though she always loses out when this side of her personality is shown.