First timing is before any improvement
Second timing is based on first commit
Third timing is based on last commit

Test is done by entering the filter text in the search box 
and measuring the timing on the server side. Is probably
not very reliable but gives an impression of the differences

>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>.
FILTER --> a
 T --> 743
 T --> 516
 T --> 232
FILTER --> b
 T --> 5415
 T --> 3118
 T --> 1120
FILTER --> e
 T --> 42
 T --> 39
 T --> 30
FILTER --> g
 T --> 278
 T --> 196
 T --> 173
FILTER --> h
 T --> 943
 T --> 531
 T --> 336
FILTER --> b
 T --> 123
 T --> 125
 T --> 126
FILTER --> EIL
 T --> 35
 T --> 27
 T --> 1113
FILTER --> yg
 T --> 16616
 T --> 2513
 T --> 757
FILTER --> zz
 T --> 771
 T --> 750
 T --> 744
FILTER --> yyg
 T --> 755
 T --> 753
 T --> 163
FILTER --> kjl
 T --> 740
 T --> 755
 T --> 158
FILTER --> yg
 T --> 741
 T --> 734
 T --> 731
FILTER --> klm
 T --> 782
 T --> 734
 T --> 164
FILTER --> tgh
 T --> 767
 T --> 737
 T --> 184
FILTER --> tg
 T --> 755
 T --> 770
 T --> 745
FILTER --> gh
 T --> 771
 T --> 754
 T --> 840
FILTER --> AMSEIL
 T --> 32
 T --> 30
 T --> 582
FILTER --> IJL
 T --> 756
 T --> 751
 T --> 176