1) in terms of the money for jobs i think things like parcel delivery i think the money you get per parcel should be like 20 dollars per parcel (makes it more realistic) and same for the other jobs.
2) You should be able to get points on your driving license so you can get banned from driving etc also have different type of license like bike, car, lorry like in real life.
3) You should get charged every time you change your clothes so its like you have paid for them (unless your in your house where it would be free)
4) longer jail sentences etc 5 months = 5 real life days so the sentence fits the crime and makes rp when the leave jail (make it so the sentence can be done offline)
5) remove alot of the charges that dont get used on the cops mdt (maybe have the most used charges at the top) also could it be work that you can use voip while in the mdt
6) make it so the cops cant just remove cars they have to get a player to come toe it way unless none are online.
7) have npc shop workers so it looks like someone actually works there
8 ) make the price of modding car more expensive
9) make the sever actual real life 24 hours so the time is the same in and out of game. (this one i just think would make it easier to arrange things)