BingBong

Yep, I've tried all of those things, except Advanced OpenGL On. I'm about to try that now. EDIT: Advanced OpenGL On didn't work BUT I think I've found out something: I think my fps issues are coming from problems with rendering. However changing the render distance does not do much. Tiny does increase fps but lag spikes are still present when i turn around on the spot DOUBLE EDIT: Yep, definitely coming from rendering

Hello?

Yeah it's annoying when your mods don't load and you lose your stuff

This happened to me once. It was a bit annoying because all of my tekkit items disappeared. Luckily for me I'm a noob at tekkit so I didn't lose much stuff.

Anyone have any more ideas?

If you mean technic SSP, then yes, the lagspikes are still present

Look, I don't want to upgrade my OS Any other ideas? EDIT: OK, the problem has changed a bit. Now, what happens instead is that the first 2 or 3 minutes are fine with no lag spikes. However after that previous good spell, instead of the constant lag i described earlier, the fps constantly changes and there are many lag spikes. The worst of the lag spike come from spinning (looking) around. Other major lag spikes include going into my inventory, clicking on a crafting table, chest or anything that has an interface.

I believe that upgrading my OS is more like a last-ditch attempt, so I would rather try every other option, then either do as you said or try to play tekkit with the lag. Also, i really don't like Windows 7

Apart from a few lag spikes here and there, normal vanilla minecraft runs fine, hovering around 30 or 40 fps, sometimes reaching 50 fps.

Wait, wait, hold up. What's the default amount? EDIT: Just wondering, but is there a correlation between the low fps and the strange memory issue? DOUBLE EDIT: Didn't work

This problem has been present ever since the first time I played Tekkit(this is single-player by the way) . For the first 2 or 3 minutes, Tekkit runs okay -around 30 -50fps (80 when I look at the sky). But then suddenly my fps nose dives, going as low as zero, but usually hovers around 10 fps. I really don't get it Now for the memory issues part. Lets say that on the Technic Launcher I select 512MB. Then i press log in. It loads then I click on my world. The world loads and then i press F3. In the top right it says: Used memory: 20% (110MB) of 494MB Allocated memory: 39% (194MB) What is happening and does anyone know a way to fix it? Any help would be much appreciated. System Specs: Microsoft Windows XP Service Pack 3 RAM: 3.5GB