Hello, this guide/tutorial is created by Lijpe (me) made for players who have a lack of proper framerate In-Game or having lag spikes.
1) Clean your Prefetch
When you delete or run something there are always old files available at the Prefetch folder; this is why you should delete those files.
Open run (hold windows button + R) then type in 'Prefetch'. Do you get a warning that you have no access? Ignore it and open it as admin.
Hold Windows button + A so you can select everything, then click on the Delete button at the right side of your keyboard and delete everything.
Your prefetch is proper; If you have done that you'll get less issues with programs.
2) Deleting unnecessary programs
Make sure you will delete programs you don't need/use anymore. If you have for example GTA Vice City in your PC installed & you don't use it anymore you could better delete it. How more space you get; how better your computer performance will be.
3) Defragging your harddisk
You need to defrag your disk(s) every month to clean it up and give it a better memory.
I recommend you
Prifirom's Defraggler.
4) Cleaning your registry
Your registry has old key files who you need to remove for much better performance; the same as Prefetch but registry key-files can't be cleaned from your Prefetch.
You'll have to download registry cleaners, I recommend you
Eusing's Free Registry Cleaner or
CCleaner.
5) Re-installing your game
It's the best what you can do if your game is too laggy and slow. Re-install your GTA San Andreas and remove all the files; excluding user files.
After you have removed GTA San Andreas; don't re-install it yet. Open your registry cleaners and do a registry scan. You'll meet old GTA SA registry files which you need to delete. After you have removed them from your computer, feel free to re-install GTA San Andreas.
7) Use low-end modifications
If you have a bad computer (1.00-3.00 GB) I recommend you using low-end/low-poly modifications
only. This is to prevent lag spikes and slow performance, how more low-end modifications = how less lag spikes you get.
I offer support for this; if you have any questions or concerns feel free to shoot me a private message.
This will be updated from time to time.
Credits:
Lijpe, for typing.
Lijpe, for his knowledge.