Shambler: Here is another test. http://www.greyaliengames.com/misc/frameworktest2.zip
This one has many UFOs, you can increase or decrease UFO count with - and + (well =) and see if the jerks appear at any certain point. Also Y will change from flip -1 to flip 1 (this doesn't make any difference on my laptop, nor does the lag fix). What else, ah yes, on my laptop (which has a slow graphics card) if I boost up the number of UFOs and then press D (for Debug) and V for VSync Off, it actually goes pretty damn smooth. Try it on yours if possible. Thanks for your help btw. I'll look into a tile map now.
This one has many UFOs, you can increase or decrease UFO count with - and + (well =) and see if the jerks appear at any certain point. Also Y will change from flip -1 to flip 1 (this doesn't make any difference on my laptop, nor does the lag fix). What else, ah yes, on my laptop (which has a slow graphics card) if I boost up the number of UFOs and then press D (for Debug) and V for VSync Off, it actually goes pretty damn smooth. Try it on yours if possible. Thanks for your help btw. I'll look into a tile map now.