Weaning off Lend Lease?

In a WW2 where VE day is maybe 4-6 weeks earlier than OTL and VJ day is 2-4 weeks later than OTL, so there is about 6 months rather than 4 months between them, would Britain make less use of Lend Lease equipment? For example would more squadrons in the BPF FAA be made up of British aircraft?
 
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