The SPFX are not that outdated. And if you want to fix anything, fix the script.
The only reason you say that about the FX is because so much stuff in the last 15 years has been shot with the no-blur look. The artistic disaster of shooting miniatures in such a manner makes them strobe, which is a visual discontinuity (to put it mildly.)
The fact that this look is getting stuffed down our throats doesn't make it better, just more common, and it certainly doesn't excuse the seriously flawed planning and execution on TFF VFX. (I'm not picking on the show's physical
effects - they did the best they could there, and flying a shuttlecraft full of people in to land and seeing them all disembark in the same shot was pretty snazzy.)