SpeedWriter by CodeWriter is a BASIC compiler for the Commodore 64 based on the DTL BASIC Compiler, with improvements and upgrades. The second disk in this archive includes two SEQ text files with the manual and quick reference. Here is the statement from the front box cover:

SpeedW riter makes Basic fly! This utility program SPEEDS up your BASIC program to run faster and more efficiently. A must for the sophisticated programmer, yet easy enough for the novice. Couldn't be simpler. Just give SpeedWriter the name of your program and it will do the rest.

Thank you Jeff V. for sharing the program - Here's a link to the manual.