No, you aren't going to find any attractive escorts in central London for £80 p/h.
Pick one of the following that you are prepared to move on - 1) location within London, 2) half hour vs hour slot or 3) price (could you go to £100?) and I can give you some recommendations. To illustrate - You are a 15 minute bus ride away from a gorgeous Portugese wg - but she's £140 for the hour - £70 for mins.