Violins can't play fast anymore

I've noticed that in recent updates of musescore, the violins now slur every fast note. Before, they could play decently fast notes, although they usually couldn't play fast triplets without completely missing the timing. Luckily, I exported an mp3 from before they stopped being able to play normal fast stuff, so I can compare it with how it sounds now. The pdf is the sheet music for the older one, and all I've done recently is just add 2 measures. If you want to compare the mp3 files, go here:
OLD: https://drive.google.com/file/d/1dbZv6tOuZhYyzo_CEaFqM-SSfr0ZImII/view?…
NEW: https://drive.google.com/file/d/1f_-mE8FvnK_w-2pKVREIgLEevRQrpWlD/view?…