Although I didn't have freezing issues, I've been trying to tweak my FSX to get respectable performance without sacrificing quality. (Don't we all??)
I finally gave this Jesus tweak a shot. It helped a little, but the one sentence that stuck out to me was "Your TEXTURE_BANDWIDTH_MULT is being COMPLETELY ignored under your actual configuration, you can very well forget about it.
We suggest an ATI or NVIDIA card for improved performance, we have no recomendations for AMD Radeon HD 6700 Series cards".
Umm, ok?? I don't have the $$$ to buy a new card, so whatever. Anyway, it did recommend this external FPS limiter thingamabob, and after trying for hours to get that damn thing installed and running, (readme's in a different language with no other instructions), and locking frames at 20 while keeping them at unlimited in the sim, I noticed slightly better FPS with no blurries. So I "guess" it helped. Nothing mindblowing, however.
Thanks for the link though. After Google searching Jesus tweaks, I read nothing but positive reviews about it, so I figured why not try it and see.
Just one man's opinion.
Dell XPS X8300 Intel core i7-2600(3.4 GHZ,8 MB Cache) 8 GB memory 1.5 TB HDD 1 GB AMD Radeon HD 6770 graphics card Windows 7