Amplify takes a long time to build

We have an Amplify project using Angular version 6.0.8

It used to take about 10 minutes to build. However, it is taking over 40 minutes recently.

From the log, it took 13 minutes for dependencies optimization and another 12 minutes for chunk modules optimization

2024-01-30T17:56:09.063Z [WARNING]:  70% sealing 70% sealing WarnCaseSensitiveModulesPlugin
2024-01-30T17:56:09.063Z [WARNING]:  71% basic dependencies optimization       71% dependencies optimization 71% dependencies optimization SideEffectsFlagPlugin
2024-01-30T18:09:02.325Z [WARNING]:  72% advanced dependencies optimization    72% after dependencies optimization
2024-01-30T18:09:05.834Z [WARNING]:  73% optimizing
2024-01-30T18:09:05.870Z [WARNING]:  73% basic module optimization       74% module optimization 74% module optimization CircularDependencyPlugin
2024-01-30T18:09:08.098Z [WARNING]:  74% advanced module optimization 74% advanced module optimization FlagDependencyUsagePlugin
2024-01-30T18:09:14.328Z [WARNING]:  75% after module optimization
2024-01-30T18:09:14.348Z [WARNING]:  75% basic chunk optimization 75% basic chunk optimization EnsureChunkConditionsPlugin   75% basic chunk optimization RemoveParentModulesPlugin
2024-01-30T18:09:15.929Z [WARNING]:  75% basic chunk optimization RemoveEmptyChunksPlugin 75% basic chunk optimization MergeDuplicateChunksPlugin                                  76% chunk optimization 76% advanced chunk optimization 76% advanced chunk optimization SplitChunksPlugin
2024-01-30T18:09:16.354Z [WARNING]:  76% advanced chunk optimization RuntimeChunkPlugin
2024-01-30T18:09:16.354Z [WARNING]:  76% advanced chunk optimization RemoveEmptyChunksPlugin                            77% after chunk optimization 77% module and chunk tree optimization 78% after module and chunk tree optimization         78% basic chunk modules optimization       79% chunk modules optimization 79% chunk modules optimization ModuleConcatenationPlugin
2024-01-30T18:21:54.232Z [WARNING]:  79% advanced chunk modules optimization    80% after chunk modules optimization                  80% module reviving 80% module reviving RecordIdsPlugin       81% module order optimization 81% module order optimization OccurrenceOrderPlugin

Any help is appreciated.