I have used Jing in the past.
For Screenshot: Fast. Responsive. I like the unlimited "blur" feature very much to hide & to create curiosity for viewers. Screenshot URL was generated faster than TechSmith (Formerly Jing).
For Screen Recording: No System Lags or Extension Lags or Hassle Like Loom. Pretty Decent.
Suggestions For Screen Recording: I would like you to experiment with a $1/month 50 720p Videos plan. Pretty Crazy. Isn't it?
Imagine what will happen!
I will give you 5 stars for fastness and responsiveness. No lags for me.
Good luck!
I think the best thing that I like about this tool is it's simple UI and experience it provides. Easy to use and gets the work done just like it should.