It's alright. I experienced exactly the same thing when I first started playing. I got a motivation to continue after my cousin showed me that I can have many more jobs other than a Squire and Chemists.
So, first of all. Just to make sure, you know can change your character's jobs right from the beginning right? 'cause I made a huge mistake of not knowing which made me feel like quitting.
Anyways, to continue on. Yes, the beginning is slow. Your characters are very weak. Even battles are slow. But, it all gets MUCH better later on.
As soon as you reach level 20's and higher, that's where the real fun begins. I went through many job changes already and I still don't get enough. By 20s, I can pretty much kill anything within 1 or 2 hits. It makes it so much faster.. but you have to have the right combination of abilities.
I try not to use Melee class as much because they're over powered, but that's where the fast exp and jp points come in. I plan to switch to magic users later on. My characters are currently level 60's.
If you want a way to level fast, here's what I suggest:
-get JP Boost and Focus as fast as you can from the Squire abilities
-turn to Monk and try to learn Hp Recovery as fast as you can. (your HP recovers fully when you fall down to a critical state. Rate of that happening depends on your character's Brave points)
Now, when you enter battle. Kill everything until one monster is left. Keep attacking your own characters and hope that they keep using HP recover whenever they get to critical state. OR a much faster way, have all your characters just keep using Focus and end your turn. This way, it goes a lot faster.
One thing I have to explain though, try not to Move AND Action at the same time if necessary. It requires more CT points. (CT Points are under your MP stats). CT points represents how fast it'll be until its your turn again. Moving and doing an action resets your CT points all the way to 20. Only doing an Action/move resets it to 40, so it'll be faster to receive a turn again.
Basically, just continue repeating the process.
I have a Time Mage. I love my Time Mage. She has a spell called Quick which restores my CT back to 100. Very useful in my opinion.
Right now.. my party consists of: (I try to challenge myself by not using the over powered characters you get later on during the game)
Ramza - Knight with Duel Wield (two swords from Ninja ability). I used to be a Squire, Ninja, and Monk before.
Time Mage - with White magic
Monk - with Steal using Concentration from Archer. (steals better than my actual Thief lol)
Orator - Works well along with my Monk because if there's too much to steal, I just invite them to my party/put them to sleep. I also use him to rase bravery. Also have the ability Items with Throw Items in case I need a quick heal.
Ninja/Squire/Dragoon/Whatever.. - This guy is another melee in case my Ramza needs backup.
Edit: Forgot to mention, I end battles within 5 minutes now if I feel like ending it really quick.. It gets a lot faster. Oh and, I still suggest the PSX version. It doesn't have slow down when doing an attack. But, it has a lot less features like multiplayer.
You can, apparently, play multiplayer online. You gotta set up things on your computer though to connect to another PSP through internet which tricks the PSP into thinking its a Local WiFi. I forgot what it's called, but if you're interested, tell me and I'll get you the name of it.