Okay, I will update this post to let you know about the results.
- CFG USB Loader: 222-mload, 223-mload, 224-mload, 245, 246, 247, 248, 249, 250 - all of those are causing lag issues; 222-yal and 223-yal are not working ("set_frag: -128", "ERROR: SetWBFS: -128")
- GX: Same as with CFG + 202...