2001 Other Hyundai Models I need help

I have a 2001 Hyundai XG 300, 100700 miles and it doesn't start.
1 - First I noticed that while running, when I hit the gas it would take it 2 seconds to accelerate.
2 - one day the starter barely got the engine started and it seemed like the battery was low. (But using a new battery it still hapened). After trying 3 times the starter was dead. It was only ticking.
3 - I put a new starter. And the car started but it accelerated up to 2000 rot/min in parking. After driving half miles it got back to normal.

4 - next day while driving, after 10 miles suddently the power was down. But car stil running. Junst shacking when switching gears (automatic). I did not stop the car and tried to make it back home, but before even getting there, the engine died when I stopped at a traffic light.

if a try to turn the engine on I can onli hear the starter tiking and same tiking coming from brake pedal. And the power its trange because when I turn the key inthe ON position everything in the car worksbut when turning in the START position everithing dies, and a hear the tiking again.

please help me !