I'd love to see a screenshot. It sounds like you're not animating the position property, or if you are, you've moving it very quickly between two positions.
When you say the graph editor shows 15 to 20 thousand pixels and you're looking at speed then you're seeing pixels per second, not pixels of movement. The graph editor is often confusing and it's very important that you have it set to Auto-zoom graph height.
You can get the huge pixel per second values with two keyframes are close together or when you've grabbed one of the handles and pulled it off the chart like I did here.
Your frame buffer size is too big shouldn't have anything to do with the movement of the text but it can have everything to do with your memory allocation and composition settings. Go to Composition>CompositionSettings then Advanced and check the shadow buffer settings in the render options and check the samples per frame and adaptive sample limit for motion blur.
I appreciate the info.
I was messing around with the graph editor a little bit after I posted this question. It seems that by default the lines are set to "continuous bezier", which means they are natural flowing curves. This was my main problem when animating the text.
I also found out why my frame buffer size was way out of control. Before my text was coming into the shot, it was blurred to the point where the size of the text was massive. I managed to figure out a different way to make the transition effect altogether
so that the frame buffer size was managable by AE and would not crash when rendering.
Also, you mentioned that I should check the shadow buffer settings and also my samples per frame/adaptive sample limit for motion blur. Those settings haven't been touched. They are 16 and 128 respectively. The shadow map resolution was set to comp size.
Do you have any recommendations as to what I should set these?
Again, I appreciate the info. Messing around with this program has been quite enjoyable. I'm sure that once I get used to it, I'll be able to animate without so much trouble.