Waiting 60 seconds some would call immersion. To make collection faster, use more limpets and get closer to the wreckage.
Immersion is always good, but waiting is never good. This is, after all, a game; there should
never be a point where the best thing to do is nothing at all.
But that's how the limpet system is. You can't really even try to scoop manually at the same time, because it will just interfere with the limpets and slow them down.
Here's the deal; materials are rewards. Rewards should be a universal good. There should be absolutely nothing annoying about getting a reward.
Engineered Materials.
Engineered Mats are easy. Your cargo hatch should have an automated grappling hook that fires a high-speed wire at nearby engineering materials and sucks them in. This does not take any mad science or alien technology, just a wire with a claw at the end.
The reason this works for materials and not for cargo is because cargo is much heavier. Canonically, your SRV can hold hundreds of units of any material, while it can only hold 4 tons of cargo, so canonically, materials weigh barely anything, and this is justified. Players would simply fly PAST materials(no need to slow down), open their cargo hatch(while pointing the right way, of course), and it would fire out as many hooks as necessary to reel them all in. Rather than taking 60+ seconds and dedicated modules, it would happen almost instantly, and players would get to engineering with a significant stockpile already accumulated.
Data Materials
Data materials are gonna be really hard to fix. They're acquired in a stupid way, for starters. Shield scans are absurdly easy to get and you barely even notice they're happening, to the point they might as well not exist at all. Wake scans, by contrast, are frustratingly grindy to acquire, because wake scanning is never used in normal gameplay. And the data you get from Horizons settlements are even worse. Data Mats are a total mess in every way. The fact 90% of people get all their mats from the Jameson Crash Site is an abomination.
But as far as fixing them is concerned, I haven't the foggiest idea. It seems to me it would take a complete revamp of many types of gameplay to make getting data mats more common, but the problem is, none of those things are particularly fun.
I guess I'd start by letting you scan wakes just by flying through them. They should be a slight shimmer in space, not just a target, and when you fly through, you get the data, but not the wake scan. A wake scanner would let you scan them from a distance, instead. That at least lets you get some data without needing to waste a utility slot on a useless wake scanner.
Leave shield scans as-is. They suck, but at least people get them.
Settlement scans are terrible, and I have no idea how to fix them.
Raw Materials.
For the most part, raw mats are fine atm. They're not great, but you get some via mining, and collecting from brain trees/etc isn't terrible. My only change would be making the scooping process not require targeting. Just drop the scoop and run them over. Would make collecting much less tedious.
Make these changes and mats would already be in a much better state, then we can work from there.