»FPS Drop problem help please?

I was playing Anni like I normally would a while ago. While I was playing, people in chat were mentioning 1.7 about how op the blockhit was so I decided, why not try it out? I went to change my client from 1.8 to 1.7.10, went to Anni and it was so messed up, the tab team colors was scrambled everywhere, the Phase countdown is being spammed on chat and I had a massive fps drop with 1.7 too. So I went back to my normal client, 1.8 and after going back to Anni, I walked around, and every time that I load chunks, my fps drops to like 7 and lasts for like 5 seconds! I noticed that this happened after opening up my 1.7 client, any tips or help guys?

 

And this never happened before too. :/

 

I had this problem a long time ago. But it stopped I use 1.8.9 optifine and my render distance is 4 I stopped fps lag

 

It also happens to me when I dont change my resourcpack.I use 1.8.9 its better

 

Did u use 1.7.2 it's better for block hitting and I think u can delete the version in .minecraft- version- find 1.7.10 and delete the file . Hope This Helps .

 

First I got like 15 fps xD.because I dent know what the good settings are but now Atleast I know that its not my computer problem xD

 

Yeah same, iv had this problem recently, lag spikes
So i got premium couple days ago and apparently I need to set more space for the minecraft memory, I tried the code to set it to 2GBs instead of 1 but it didnt work

I usually just restart my mc and the lag spikes are fixed for abit but its annoying af

 

Find versions in .minecraft and delete 1.7 and 1.7.10