What file size were you expecting?
Have you previously exported animated .gif files of
similar frame size, frame rate and duration from Premiere?
Also, unless you have a specific reason, checking the
"Use Previews" box probably isn't what you want.
I have never exported an animated .gif.
Should it really be interlaced (LFF)?
I was expecting something between 3 and 5 MB.
No this is the first time!
Where do you see the LFF option?
Can I restrict the colors some where? To say only use 256 colors or something to make it smaller?