Fast search line is not fast

When I enter first two letters of a channel name with keyboard to fast search line, then ProgDVB fast search line hangs for 3-5 seconds.
After I have entered more than two letters of a channel then the search is faster but still not instant.
Compared to the VLC Media Player's search line, ProgDVB channel search is way slower.
How is it possible to make searching a channel from fast search line as fast it is with VLC Media Player?
fast search line of ProgDVB
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Also, ProgDvbNet has stopped working after I enter two characters of a channel list. It has stopped and ProgDVB has crashed only when I have entered ,,sh" or ,,as". When I enter ,,s" or ,,a", then it will not crash.