one turn signal is blinking fast? Options

[DSToyo]

when i bought my car, the passanger side blinkers (front & back) blink twice as fast and half as bright, while the drivers side blinks and is bright normal
-i have replaced the bulbs in the front and it didn't do anything at all
-the wires don't look tampered or destroyed at all
i just want to get them to blink the same again and don't really know how to, ive read some other posts on topics like this but dont really get it.

i guess im going to change the bulb in the back to see if that helps
thanks for any help/suggestions

[Hanyo]

make you put the right bulbs in. I think there single filament bulbs that fit in dual filament sockets.

check turn on all your lights and blinkers to see if they actually blink from the outside of your car.

turn on the emergency blinkers also. See if anything weird is going on.