[MangaD]

I suppose the next thing I want to look for is how to adjust animations, specifically animation speeds since Drew's jump kick

You'll find frames' data in SPT files. Drew's SPT file has id=229. Open that file and search for "name": "JUMP_ATTACK". You should find the following:

"50": {
    "HFW_classNameXXX": "Data.Action",
    "selfLoop": false,
    "nextAi": -1.0,
    "allowTurnFace": false,
    "nextAti": -1.0,
    "frame": null,
    "aiz2": 0.0,
    "special": -1.0,
    "landAti": -1.0,
    "landAi": -1.0,
    "nextAgi": -1.0,
    "name": "JUMP_ATTACK",
    "a_keyTgr": null,
    "landAgi": -1.0,
    "frameIndex": 146.0,
    "aix1b": 0.0,
    "mpBurn": 0.0,
    "index": 50.0,
    "aix2": 0.0,
    "aiz1": 0.0,
    "nextActionName": null,
    "type": -1.0,
    "aix2b": 0.0,
    "aix1": 0.0,
    "landActionName": null
},

Notice that frameIndex is 146, that's the frame where JUMP_ATTACK begins. Now you can search for "146" and you'll find that frame. All subsequent frames with "name": "jump_attack" belong to that motion. Every frame has a duration attribute, you can increase it to slow down the motion. Good luck!