Pfft, ya'll are lightweights
Srsly dude,
write taller!One thing I recommend (courtesy of a friend studying hand anatomy ) is that you make your writing taller. It's way more natural for you to make up-and-down hand movements (eg. like patting someone on the head) than it is to go from side to side (eg. waving goodbye to a friend who's weirded out by your patting.) So it's naturally quicker for you to write long, tall letters than it is to write short, compressed ones. Idk, it's a minor change, but if handwriting is impeding speed or clarity, it's worth spending some time improving it
I used to (and sometimes still do, when lazy) have horrible scrawly handwriting; legible, but it would cause me physical pain to write for more than an hour at my regular speed. When you're concentrating fine motor movements with a tense grip, you end up putting unnecessary strain on your hand in all the wrong places (usually resulting in a sore wrist for your first method or an indent in your thumb for the second.)
Regardless of your preferred pen-holding-method, elongating your writing to take up the whole line makes it much easier on your hand, even if it feels like you're exerting more effort by writing slightly bigger. It actually helps you form letters better (ie. your lowercase 'f' for fox in the second example wouldn't look so ambiguous, and the 'o' in dog would be a circle and not a barely perceptible loop.) These little things don't seem to impede legibility at the moment, but that might just be because you're writing words like 'fox' and 'dog' that can be inferred from context. In the exam, the assessors do occasionally have to stop and look twice - of course they're willing to forgive this under timed conditions - but if it's happening consistently, then it breaks to flow of your writing, and they stop focusing on the ideas you're trying to communicate.
You don't have to go full blown cursive, but taller, slanted writing is a lot smoother and faster than tiny spasmodic twitches.
Alternatively, there's always the 'Angry-Pre-Schooler-Gripping-A-Crayon
TM' approach, vis-à-vis above.