Process:
1. Goto
http://www.iobit.com/gamebooster.html Or
http://download.cnet.com/Game-Booster/3000-18512_4-12119223.html2. Download Game Booster 3.0
3. Install it with the settings you like

4. Start The boost

5. Now your computer is in Gaming mode and all the useless background programs are closed
6. Now We need to defrag our Game

Now Choose The Gta San Andreas (If you dont find it then browse it)

I Tryed this method and it made a difference to me, So my ping is good
Or

Most of the time higher ping is caused by a bad/busy connection or a very busy system.
Somethings that can make this happen are:
- Downloading
- Wireless bad connection
- Maintenance on the city's network
- Maintenance on the servers network (if all players experience it)
- Infected system (virus, malware, etc.)
If your not downloading I would suggest scanning and see if you can get a better wireless connection (if you play wireless)
Also, if this doesn't work, to get a better ping is to changing ur ISP or moving close to the host.
Or while playing SAMP, in other terms close any other process/program that is using an internet connection.
Btw if u wanna speed up ur Connection, don't download file bigger, don't active Automatic update, Check Weather (if rain,storm it's will make connection weak).
This Game booster,i presume,disables your background programs in order to free up more RAM and increase FPS. Ping just represents a distance from one server to another.. And it doesnt really matter that much,you can have a ping less than 50 ms and youll still lag if your connection is slower,on the other hand,you can have a ping of 300 ms while still not lagging like the other player close to the server but with a slow connection
it's iknda popular that in some networks a rush hour is at evening, everyone is coming back from work / school and starts downloading files, playing and so on, it's network depending
get a new ISP or move to the country in which the server is there.It is dependent on the location of the server and the quality of internet connection.
Hope i helped you
