Response Speed of 'End Point' etc.

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I'm an occasional user of DS and have wonder if my issue is a common one. When I'm drawing a line, or other tool, it seems like I have to wait in the vicinity of an 'end point', 'midpoint', etc. label to show. Or at least to wave my pointer around a bit. Plus they don't always show up. My computer isn't the fastest dog around, but it's not the slowest either (see attachment). Any thoughts?

I usually have either Polar or Ortho on, esmap on, and sometimes etrack. Sometimes these seem to work against each other, but I guess I figure that as I get experience using them.