I'm sorry to hear you are having CPU issues.
Tempo adjustment can be a CPU intensive process especially on small buffer sizes and with multiple tracks since it's done live by a third party library. I recommend the following - if you need these tracks as a backing loop that will not change during the performance it's best if you reexport them in the tempo that you need - so that afterwards when you import the new files (at the tempo at which you will need them) their tempo will already match the project's tempo and they will not have to be adjusted - which will save a lot of CPU.
ALK is set up for live performance and at the moment unfortunately does not allow imported files to be reexported at a different tempo but you can accomplish the same by:
- creating a new track with a long record loop
- routing the track (with original tempo 101.7) that you wish to export at the project's tempo to this track and recording the track into the long record loop
- lastly, exporting the loop at the correct tempo (101) as a wave file
The process might be a bit quicker with other DAWs that are more suited for studio work, since some of them allow exporting the tempo adjusted loops offline (so you don't have to record the each loop and then export).
If you need more detailed instructions let me know - this way you will have 11 loops which will not have to be tempo adjusted when you use ALK - which will in turn free a lot of CPU.