Question: Series simplification performance

If I compare Maple 2024 and Maple 2022 on the exact same worksheet, Maple 2022 executes twice as fast as Maple 2024.

For my kind of work this is very serious. I have programs that can take 10 or more days to complete calcuations, therefore what Maple 2022 will calculate in 10 days, Maple 2024 takes 20 days. It has wasted a LOT of my time, whatever the reason is.

Here is the code: 
1) MM must be a high order series expansion with complex arguments so that simplification is not trivial. Use any such asymptotic expansion.
NOTE: I can supply an expansion for a developer through official Maple support, but cannot release it publicly as it is part of a future publication. It is easy enough for anyone to create a complex expansion, with difficult simplification.
2) The simplification of the expansion must at least take a couple of minutes at e.g. Order=10 for the comparison to make sense.
3) Then run the program for Maple 2022 and Maple 2024 respectively and note execution time.
4) This was run on Linux.

As you will see the Maple 2024 calculation takes twice as long as the Maple 2022 calculation. 
SEE RESULTS AT END OF PROGRAM.

testorder:=6;                             # Enter the expansion order here.
MM:=??:                                   # Enter the expansion here.
series(MM, x = 0, testorder):
convert(%, polynom):
map(simplify, %):
#collect(%, x, simplify):
simplify(%):

                        testorder := 6

RESULTS:

OPTION1 Calculation time for series MM,

Maple 2024
O(4):   Linux Wall-Clock Time: 1.000 seconds
O(6):   Linux Wall-Clock Time: 11.000 seconds
O(8):   Linux Wall-Clock Time: 153.000 seconds
O(10): Linux Wall-Clock Time: 2135.000 seconds 
O(12): Linux Wall-Clock Time:  19593.000 seconds

Maple 2022
O(4):   Linux Wall-Clock Time: 0.000 seconds
O(6):   Linux Wall-Clock Time: 9.000 seconds
O(8):   Linux Wall-Clock Time: 88.000 seconds
O(10): Linux Wall-Clock Time: 1062.000 seconds 
O(12): Linux Wall-Clock Time: 8987.000 seconds