Share Location and Driving Distance Calculation based on source and destination long and lat

Hello In our web site developed in core PHP5, I have used a couple of jqueries related to geolocation and driving distance calculations. But these queries are pathetic and degrading the performance of my web site page loading. Hence looking for better solutions which will not take more than a couple of seconds to achieve the same tasks. Tasks : 1. "Share location" of the visito 2. "Calculate the driving distance" based on the source and destination location "lat & long" values. I am using right now ipinfodb for detecting the visitor location but this is very bad and taking min of 30 - 45 sec to load the page where as my competitors pages are taking only 1 to 2 seconds time to show the location. And the same we are using for distance calculations between two points which is not working as we want. It is calculating the straight line distance but we want the driving distance between the two locations (for eg. Visitor's home to clinic address) Please note, for calculating the driving distance the visitors exact gps location is very important which we have failed to get it. Instead we will get the ISP iplocation which is not correct. I have seen some websites where they are able to get the exact visitors gps location and its IP and through this they are able to calculate the correct driving distance in Kilometers. Note : I am looking for only those who are familiar with these techniques and can deliver it very fast. No experiments please. Share Location Requirement : It should get the full address details includes "Country, state, city, street and pincode" Driving Distance Calculation : Google provides two types of distances : 1. Straight line distance (which is very easy but we dont' want it.) 2. Driving Distance. (Visitors current GPS location and IP address is must to calculate this distance.) my website is : [login to view URL]