What is the expected time it would take for an accountant to do...

What is the expected time it would take for an accountant to do my tax return?
70 odd trades in shares
a couple k in divvies
have already had a bit over 4k in tax withheld from working 2 months last year just b4 xmas
it tokk me less than an hour to work out my profit/losses from trading
my accountant has had it now for 3 months and he tells me there is a lot to do
he has been doing this profession for probably 25-30 years
does anybody have an explanation for the time he has taken to do my return?
i know he has been taking too long and would appreciate any help from anybody who has any experience similar to mine
thanks in advance