dbcc showcontig information

I ran the showcontig on the table and with the result below. What does it means when Extent Scan Fragmentation is high?
Could I do anything to improve the table performance?

thanks
DBCC SHOWCONTIG scanning 'table' table...
Table: 'table' (1435152158); index ID: 0, database ID: 5
TABLE level scan performed.
- Pages Scanned................................: 454
- Extents Scanned..............................: 60
- Extent Switches..............................: 59
- Avg. Pages per Extent........................: 7.6
- Scan Density [Best Count:Actual Count].......: 95.00% [57:60]
- Extent Scan Fragmentation ...................: 88.33%
- Avg. Bytes Free per Page.....................: 299.9
- Avg. Page Density (full).....................: 96.30%