itch.io

I have had something similar happen to me the issue was picking up too much stuff. You have a limit to what you can carry which might be the culprit behind your speed issue. Hope that helps and it is not some weird time bomb in the building that makes you slow. 

I find the magnum helps which I found replaying lv 1 and defeated a licker to get.

Magnum ammo is made in the crafting area and is unlocked when you get the magnum.

I have noticed a finished version of this game on steam. Will the paid version be getting an update soon? Also I have noticed a bug when playing a second file that makes all guns and upgrade chips disappear for the second file.

do not worry about the door. that is end game. interact with everything else

This game is coming along nicely and I look forward to the updates. One thing that would make the game better if the font was bigger.