139 PP 20+2 NL SnG

[Zelcious]

I've played 139 Party 20+2 NL SnG. I usually 2-table.
Here are my stats:

place 1 count 27 procent 19.4%
place 2 count 19 procent 13.7%
place 3 count 8 procent 5.8%
place 4 count 17 procent 12.2%
place 5 count 17 procent 12.2%
place 6 count 20 procent 14.4%
place 7 count 14 procent 10.1%
place 8 count 11 procent 7.9%
place 9 count 5 procent 3.6%
place 10 count 1 procent 0.7%

games 139, winnings 1102$ ROI 36.0 ITM 38.8

They are decent but far from excellent. I know had some really bad swings and since it's quite limited sample maybe my true ROI is higher. Can you get any info from these stats on where my play might suffer ? What would you otherwise recommend to advance to a ROI of around 45% 2-tabling ?