If all your matches are like that, then he is the better player. If you're sincerely looking for help you should post up vids where it's a little more even. 5k definitely works well too. 2K and 2D are just important (in general I mean because it doesn't look like your Jam parries too much) because most of the Jam's I've played like to parry a lot. Sol's only 2 normal lows are 2K and 2D so it's a viable option. Simply because you can't parry lows, you might want to opt for them. It all depends on your opponent though of course. Watch Jam parry, 2s and puffball habits the most, I'd say.
Oh yeah, 2D also goes under her DP. Some Jams like to use it a lot with K card I think it is for 623K 236K into corner loop.