I am sorry, is there a question or are you trying to tell us something? If you updated Java and your using Optifine there is very little you can do to get better FPS aside from hardware upgrades.
A tick is supposed to happen every 20th of a second in Minecraft, if its happening less you get whats called tick lag which is when everything starts slowing down. This is in no way related to your FPS, although if you have a weak processor and your playing SSP then high tick load will lead to bad FPS because your processor is maxed out.
Once you have enough machines other stuff in world it will slowly eat away at your tick time. A common cause is lots of engines, routers, pipes, tubes, etc. Your best option it to move your world to a server then connect with your client, that way your weak processor won't have to cope with running the internal server as well.