Not sure if was intentional but the repair kits are dropping from enemies instead of clearing the wave (like was before) so even at small % the spawn FAST and go away very slowly and they even stay after you reset the Votages (screenshot at wave 6 with tons of repair kits). Also toggling the animation in the options doesn't disable the animation from the repair kits, so it gets laggy pretty quick.

If the kits dropping from the enemies is intended their "screen time" should be like 7secs max, since at 7 time speed you have 1 sec to click and they should clear after every wave, believe me you would get enough even with those constraints. 

If was not intentional and they should drop from wave clears them is just a bug and probably will be fixed like before.

So far haven't seem everything from the new update but this was just too noticeable. 

Thanks for the detailed report, this was super helpful. The kits dropping from the green carrier enemies is intentional, but everything else you saw was a bug. They were supposed to clear at the end of every wave like before, and a last minute change broke that cleanup without me noticing. That's why they piled up, lagged the game and even survived a Voltage reset. The fix is live now in v1.3.1, so if you refresh you should see kits clearing every wave again, which at high speed is even tighter than the 7 seconds you suggested. Good catch on the animation toggle not covering the kits' sparkle too, that fix is coming in a future build.